Engineered for the rigours of modern MTB riding from enduro racing to gravity, this front-orientated tyre is designed to perform on the most demanding of terrain conditions. Coming equipped with a TriTec compound, it uses its three compounds to provide optimal levels of traction, support, and durability as you tackle whatever the mountain throws at you. WTB has also kitted out this model with E25 compatibility, which means that its sidewall is designed to withstand the additional weight and forces of electric mountain bikes (E-MTB). Its E25 compatibility is constructed with additional material to not only strengthen the tyre and prevent punctures but also to provide additional support throughout the tyre. Coming complete with Tubeless Compatible System (TCS) technology, it offers tubeless benefits such as the ability to run lower tyre pressures for increased stability, comfort and fewer chances of flats or punctures. Trail-Ready MTB Tyre with TCS Tubeless Technology The Verdict is WTB's most aggressive front-focused tyre. The tyre of choice when relentless traction takes priority over rolling efficiency. Designed to dig in every way, the flat profile of the Verdict keeps chunky outer knobs shovelling at all times. Paired to a substantial intermediate channel, this ensures numerous knob edges are biting into the trail while beginning to lean or fully in it. Abundant open space between all knobs allows the Verdict to dig through the driest days of summer and fling mud in the wettest months of spring. The Verdict is guilty of holding it down through off-camber corners and chundery descents. Technologies: TriTec Compound: Three compounds provide optimal levels of traction, support and durability. A base of high durometer rubber supports the entire tread and transitions into the knobs to prevent folding or squirming. Medium stiffness center knobs cap the base layer to provide traction and durability without sacrificing rolling efficiency, while soft compound side knobs deliver maximum grip and slow rebound for increased cornering traction. TCS Tough Casing: Take our TCS Light casing and...well... double it. TCS Tough Casing is composed of two full layers of casing from bead to bead. Regardless of puncture protection spec, all TCS Tough tyres feature bead protection for additional defense against pinch flats. TCS Tough/High Grip: Glue-like conforming rubber draped over two full layers of casing leaves no area unprotected. Developed through real testing during the Enduro World Series, TCS Tough tyres can take some serious abuse. Tubeless Compatible System (TCS): TCS is WTB's standardised tubeless rim/tyre system designed to meet international ETRTO standards and provide the most reliable tubeless system available. Pairing WTB’s legendary casings and tread compounds with a Tubeless Folding bead delivers the increased traction and reliability of a tubeless tyre at a lower weight than any tubed alternative. E25 Compatible: Tyres with an E25 icon on the sidewall are designed to withstand the additional weight and forces of modern e-bikes. E25 tyres are constructed with additional material to not only strengthen the tyre and prevent punctures but also provide additional support throughout the tyre. Manufacturer's Part Numbers: W010-0903 Black 27.5" 2.5" W010-0907 Black 29" 2.5"
WTB Vulpine TCS Fast Tyre (Dual DNA)Ready for adventure, this gravel bike tyre features a Dual DNA compound for an excellent combination of efficiency, traction and durability. Its centreline tread also features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip on gravel roads. Another highlight is its TCS Light/Fast Rolling configuration that uses a fast and efficient centreline tread compound matched to sticky, low durometer side knobs for efficient speed, grip and low weight. Coming complete with Tubeless Compatible System (TCS) technology, it allows you to benefit from tubeless advantages such as the ability to run lower tyre pressures for increased stability on rough terrain, lower rolling resistance and fewer risks of flats or punctures.Gravel Bike Tyre with TCS TechnologyVulpine is the gravel revamp of a proven semi-slick mountain tread with years of swift efficiency under its belt. Ramped centre knobs form a nearly uninterrupted centreline that decreases rolling resistance while its round tyre profile is packed with short, tightly spaced knobs to provide predictable cornering traction on hardpack terrain. Delivering speed that lasts, the large centre knobs make the Vulpine highly resistant to wear and improve its lifespan compared to other gravel tyres.Features: Compound: Dual DNA Level: TCS Light/Fast Rolling Use: Gravel TPI: 60tpi Bead: Tubeless Folding Type: Clincher Size: 700x36c ETRTO: 36-622 Optimal Inner Rim Width: 19 - 24mm Single or Pair: Single Conditions: Pavement, Hardpack, Dirt and GravelTechnologies: Dual DNA Compound: Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. TCS Light/Fast Rolling: A fast and efficient centreline tread compound matched to sticky, low durometer side knobs coat a supple, gram-conscious casing designed to be compliant while still trail-worthy. Tubeless Compatible System (TCS): TCS is WTB's standardised tubeless rim/tyre system designed to meet international ETRTO standards and provide the most reliable tubeless system available. Pairing WTB's legendary casings and tread compounds with a Tubeless Folding bead delivers the increased traction and reliability of a tubeless tyre at a lower weight than any tubed alternative.Manufacturer's Part Numbers: W010-0942 Black 700c 36c W010-0941 Black/Tan 700c 36cBuy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
WTB TCS Tubeless Rim Tape Roll (66m)Light, strong, and extra sticky for durable long lasting leak proof performance.TCS Tubeless Rim Tape Width Cross Country: 19mm - 22mm Trail: 21mm - 24mm All Mountain / Enduro: 23mm - 26mm Freeride / Downhill: 27mm - 30mm Buy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The WTB Venture is a set-it-and-forget-it gravel tyre for riders who demand stead-fast traction on a wide range of surfaces. Elevated centreline ridges and dense intermediate peaks conform to any terrain during out of the saddle efforts while two rows of outer knobs provide both the support and sidewall protection you need to really push it in the corners. The Venture is an excellent choice when both the terrain and destination are unknown.SG2 defends all surfaces of a tyre by providing an uninterrupted layer of puncture protection from bead to beadDual DNA compoundTubeless compatible tyreDual DNA Compound - Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip.
The WTB Vulpine is the latest race-focused addition to WTB s line of beloved gravel tyres. Ideal for Road, Hardpack, Dirt & GravelEfficient Knob Spacing - Tightly spaced centre knobs form a nearly uninterrupted centreline that decreases rolling resistance while the rest of the tread is packed with short knobs to further promote efficiency and minimise punctures.Fast Centreline - The smooth rolling surface of the Vulpine reduces rolling resistance and improves tread longevity, resulting in a longer lifespan than other gravel tyres.Round Profile - Overall knob profile mimics a high-volume road tyre, which provides equal cornering confidence in a variety of different terrains and conditions.Dual DNA Compound - The Vulpine tread features Dual DNA Compound, which combines the strategically placed characteristics of two different rubber compounds within the tread of a single tyre. Supportive centreline rubber delivers optimal rolling efficiency and tread longevity while softer rubber throughout the outer edges of the tread increases cornering confidence across varied terrain and conditions.Tubeless Compatible - TCS (Tubeless Compatible System) is WTB's standardized tubeless rim/tyre system. TCS tubeless compatible tyres eliminate the need for tubes, reduces weight, and accommodates lower tyre pressures for improved traction and comfort compared to a traditional tube-type tyre.Tightly spaced centre knobs form a nearly uninterrupted centreline to decrease rolling resistance while the rest of the tread is packed with short knobs to further promote efficiency, minimise the chance of punctures and deliver predictable cornering traction. Vulpine prioritizes all-out efficiency without sacrificing climbing or braking traction and is the perfect tyre for gravel racers looking to lead the pack as well as daily riders in search of an efficient tyre that excels on many surfaces including pavement, hardpack and gravel.SG2 is WTB s unique puncture protection technology that provides bead-to-bead coverage to ensure both the tread and sidewall are protected from slashes and punctures. The nylon fibres within SG2 feature a uniquely flat profile, which reduces the amount of rubber needed to fill the gaps between fibres. Improving the fibre-to-rubber ratio increases puncture resistance, reduces weight and improves the overall liveliness of a tyre. While SG2 is primarily a puncture protection layer, the tightly woven fibres also improve air retention to better maintain pressure between rides.
The WTB Venture is a set-it-and-forget-it gravel tyre for riders who demand stead-fast traction on a wide range of surfaces. Elevated centreline ridges and dense intermediate peaks conform to any terrain during out of the saddle efforts while two rows of outer knobs provide both the support and sidewall protection you need to really push it in the corners. The Venture is an excellent choice when both the terrain and destination are unknown.SG2 defends all surfaces of a tyre by providing an uninterrupted layer of puncture protection from bead to beadDual DNA compoundTubeless compatible tyreDual DNA Compound - Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip.
The WTB Venture is a set-it-and-forget-it gravel tyre for riders who demand stead-fast traction on a wide range of surfaces. Elevated centreline ridges and dense intermediate peaks conform to any terrain during out of the saddle efforts while two rows of outer knobs provide both the support and sidewall protection you need to really push it in the corners. The Venture is an excellent choice when both the terrain and destination are unknown.SG2 defends all surfaces of a tyre by providing an uninterrupted layer of puncture protection from bead to beadDual DNA compoundTubeless compatible tyreDual DNA Compound - Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip.
WTB Sendero TCS Road TyreDesigned to excel on dirt and loose terrain, the Sendero uses an aggressive tread pattern with ramped centre knobs to lower rolling resistance while raising all-round grip. The tyre's profile has been rounded to increase control while cornering, and the high-volume casing ensures you have a comfortable ride no matter what terrain you're facing.Features: Usage: Adventure / Gravel / Trail Casing: Road Plus TCS Compound: Dual Compound DNA Weight: 530kgTechnologies:UST Tubeless Ready: The UST concept improves traction, control and comfort while reducing inertia and flats.TCS 2.0 Technology: This refined version of the “Tubeless Compatible System” offers the same high performance, lightweight mountain bike rim structure, but is now easier to install and more dependable.Buy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The WTB Nano TCS is built for speed, with a nearly uninterrupted centreline provides swift efficiency on hard pack terrain, while staggered outer knobs allow you to stay on the gas while hammering up chunky climbs or hanging on through loose gravel corners.Consistent centre tread rolls well while offering good tractionLong, staggered knobs provide excellent traction without compromising speedTCS tubeless-ready folding bead makes tubeless conversion easyDual Compound DNA rubber makes for a fast rolling tyre with great corning tractionThe Nano TCS is a brilliant all-round tyre for mixed terrain, whether that be out on a gravel grind or out on the road. The consistent centre tread rolls well on a range of surfaces yet still offers excellent climbing and braking traction. The long staggered knobs not only provide excellent grip, but also help the tyre roll quickly. The Nano TCS features WTB's TCS tubeless ready bead, making it a breeze to set up tubeless. Tough, fast, grippy and versatile, the WTB Nano TCS is the perfect choice for riders who want a mixed surface gravel tyre.
The WTB Resolute TCS is designed to be the ultimate set-it-and-forget-it gravel tire. Widely spaced square knobs deliver consistent traction while shedding muck with ease, making the Resolute a true favourite of gravel riders who ride in all conditions.Widely spaced square knobs deliver consistent traction while shedding muck with easePerforms well in all conditions, no need to swap tires based on the weatherRetro-esque tanwalls provide modern performance in a classic lookTCS tubeless-ready folding bead makes tubeless conversion easyAvailable in a 42mm width and weighs from 440g (650b size)The Resolute TCS is a brilliant all-round tyre for mixed terrain gravel use. The tightly spaced tread rolls well on a range of surfaces yet still offers excellent climbing and braking traction. The Resolute TCS features WTB's TCS tubeless ready bead, making it a breeze to set up tubeless. Tough, fast, grippy and versatile, the WTB Resolute TCS is the perfect choice for riders who want a fit and forget gravel tyre.
WTB Expanse TCS Fast Tyre (Dual DNA/SG2)Specifically designed for gravel adventure riding, this tyre ideal for riders who enjoy exploring from the pavement to hardpack terrain conditions. Thanks to its Dual DNA compound, it provides the perfect mix of efficiency, traction and durability for tackling wherever your next ride leads you. WTB has also equipped this model with its SG2 puncture protection, which defends all surfaces of the tyre by providing an uninterrupted layer of protection from bead to bead. Another highlight is its Tubeless Compatible System (TCS), which allows you to enjoy tubeless advantages such as the ability to run lower tyre pressures for increased stability, lower rolling resistance and fewer chances of flats or punctures.Adventure Road Bike TyreExpanse epitomises high-end road that isn't fazed by rough surfaces and lengthy detours. The slick centreline and hatched intermediate tread of the Expanse transitions into minimalistic outer knobs that instil confidence regardless of road conditions. Featuring a dependable tubeless casing, Expanse delivers a smooth riding experience while remaining resilient on unpredictable terrain. Intended for riders who leave home without a set destination and are simply along for the ride…albeit at an expeditious pace. Features: Compound: Dual DNA Level: TCS Light/Fast Rolling SG2 Puncture Protection: SG2 Use: Adventure Road TPI: 120tpi Bead: Tubeless Folding Size: 700c Width: 32c ETRTO: 32-622 Optimal Inner Rim Width: 15c - 24c Single or Pair: Single Weight: 332gTechnologies: Dual DNA Compound: Dual DNA is the perfect mix of efficiency, traction and durability. The centerline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. TCS Light Casing: One layer of supple, gram-conscious casing conforms to the terrain to provide maximum performance, exceptional reliability and low rotational weight. SG2: SG2 defends all surfaces of a tyre by providing an uninterrupted layer of puncture protection from bead to bead. TCS Light/Fast Rolling: A fast and efficient centerline tread compound matched to sticky, low durometer side knobs coat a supple, gram-conscious casing designed to be compliant while still trail-worthy. Tubeless Compatible System (TCS): TCS is WTB's standardised tubeless rim/tyre system designed to meet international ETRTO standards and provide the most reliable tubeless system available. Pairing WTB's legendary casings and tread compounds with a Tubeless Folding bead delivers the increased traction and reliability of a tubeless tyre at a lower weight than any tubed alternative.Manufacturer's Part Number: W010-0952Buy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Byway is WTB's fast and versatile gravel tyre. With a smooth centreline inspired by the WTB Horizon teamed with prominent outer knobs providing excellent grip in loose corners. For mixed surface gravel riding in dry conditions, the Byway is a great choice.Smooth centerline for efficiency with diamond shaped outer knobs for grip in the dirtHigh volume casing provides smooth, comfortable rideTCS tubeless-ready folding bead makes tubeless conversion easyDual Compound DNA rubber makes for a fast rolling tire with great corning tractionThe Byway is designed for long days of endless hardpack exploration and gravel grinding, but also doesn't feel out of place on the road. The totally smooth centerline rolls effortlessly on any surface and is paired to a textured intermediate section that provides a seamless transition onto small outer knobs for unwavering traction in loose dirt and gravel. Prominent outer knobs also extend down the sidewall to provide an additional level of defence from roadside unpleasantries of all shapes and sizes. The Byway features WTB's TCS tubeless ready bead, making it a breeze to set up tubeless. Tough, fast, grippy and versatile, the WTB Byway is the perfect choice for riders who want a mixed surface gravel tyre.
WTB Nine Line TCS Fast Tyre (Dual DNA)Whether you're into cross country (XC) racing or mountain bike (MTB) trail riding, this versatile tyre is developed for reliable performance. It features a high-quality Dual Compound that uses two separate compounds to achieve an excellent balance of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. Thanks to its TCS Light/Fast Rolling configuration, its fast and efficient centreline tread compound matched to sticky, low durometer side knobs coat a supple, gram-conscious casing designed to be compliant while still trail-worthy.Fast Rolling MTB Tyre with Tubeless Compatible System (TCS)Featuring Tubeless Compatible System (TCS) technology, this MTB tyre allows you to benefit from tubeless advantages such as the ability to run lower tyre pressures. As a result, you'll enjoy increased stability on rough terrain, lower rolling resistance and less chances of flats or punctures.Fast rolling with pared down, consistent micro blocks that boast remarkable lateral traction and effortless rolling speed. A rounded profile and healthy dosing of working edges provide predictability while a 2.25" wide offering makes for an easy transition from the short track to the single track.Features: Compound: Dual DNA Level: TCS Light/Fast Rolling Use: Cross Country (XC), Trail TPI: 60tpi Bead: Tubeless Folding Type: Clincher Optimal Inner Rim Width: 20 - 25mm Width: 2.25" Conditions: Hardpack, Loose Over Hard, Dirt Single or Pair: Single Weight: 755gTechnologies: Dual DNA Compound: Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. TCS Light/Fast Rolling: A fast and efficient centreline tread compound matched to sticky, low durometer side knobs coat a supple, gram-conscious casing designed to be compliant while still trail-worthy. Tubeless Compatible System (TCS): TCS is WTB's standardised tubeless rim/tyre system designed to meet international ETRTO standards and provide the most reliable tubeless system available. Pairing WTB's legendary casings and tread compounds with a Tubeless Folding bead delivers the increased traction and reliability of a tubeless tyre at a lower weight than any tubed alternative.Manufacturer's Part Number: W010-0862 Black 29" 2.25"Buy WTB Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
WTB Exposure TCS Road Folding TyreThe Exposure TCS Road Tyre from WTB is a durable high-end tyre that won't fall apart when taken past the traditional tarmac. The multi-layered construction of the tubeless Supple Casing delivers a soothingly smooth ride quality without deteriorating under rough or rugged conditions.Features:Wheel Size: 700cLevel: Road TCSCasing: SuppleBead: TCS AramidBuy WTB Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The WTB Nano TCS is built for speed, with a nearly uninterrupted centreline provides swift efficiency on hard pack terrain, while staggered outer knobs allow you to stay on the gas while hammering up chunky climbs or hanging on through loose gravel corners.Consistent centre tread rolls well while offering good tractionLong, staggered knobs provide excellent traction without compromising speedTCS tubeless-ready folding bead makes tubeless conversion easyDual Compound DNA rubber makes for a fast rolling tyre with great corning tractionThe Nano TCS is a brilliant all-round tyre for mixed terrain, whether that be out on a gravel grind or out on the road. The consistent centre tread rolls well on a range of surfaces yet still offers excellent climbing and braking traction. The long staggered knobs not only provide excellent grip, but also help the tyre roll quickly. The Nano TCS features WTB's TCS tubeless ready bead, making it a breeze to set up tubeless. Tough, fast, grippy and versatile, the WTB Nano TCS is the perfect choice for riders who want a mixed surface gravel tyre.
The Venture is one of WTB's most versatile drop bar tyres, delivering optimal performance across the widest range of conditions to serve as a truly set-it-and-forget-it gravel tire for riders who demand traction across a wide variety of terrain.Elevated centerline for efficiency with double row outer knobs for grip in the dirtHigh volume casing provides smooth, comfortable rideTCS tubeless-ready folding bead makes tubeless conversion easyDual Compound DNA rubber makes for a fast rolling tire with great corning tractionThe Venture has elevated centerline ridges that provide consistent working edges to dig in whether hammering up a climb or leaning into a turn, while two rows of outer knobs provide confidence regardless of how hard you re cornering. They also provide substantial sidewall protection. The Venture TCS features WTB's TCS tubeless ready bead, making it a breeze to set up tubeless. Tough, fast, grippy and versatile, the WTB Venture TCS is the perfect choice for riders who want a fit and forget gravel tyre that rolls quickly yet still grips tenaciously.
The WTB Byway is the gravel tyre of choice for long days of endless exploration when pavement, hardpack and gravel are all on the menu. Staying true to the adventure road end of its usage, a slick centreline and angular grooves encourage swiftness on any pavement required to get to the good stuff. Intermediate, diamond-shaped peaks provide steadfast traction under power, while consistent and more substantial side knobs extend down the sidewall to provide cornering confidence and puncture protection.SG2 defends all surfaces of a tyre by providing an uninterrupted layer of puncture protection from bead to beadTubeless compatible tyre with a folding beadDual DNA compoundDual DNA Compound - Dual DNA is the perfect mix of efficiency, traction and durability. The centreline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip.
Speaking for itself, Raddler is the radder version of WTB s famed Riddler tread pattern. It combines the expeditious efficiency of a short-knob centreline with get-rad traction of chunky outer knobs. Let s call it a semi-slick, but one designed to increase confidence while you re pushing the limits of gravel. Raddler is an excellent choice for loose terrain where traction takes priority, but efficiency is never far behind. Lean it over, take the inside line, brake late and stay pinned with the Raddler.Short-knob centre tread cuts down on rolling resistance while still providing enough bite for out-of-the-saddle traction.Centre and intermediate knobs on the Raddler are slightly taller than those of the original Riddler, thereby increasing tyre lifespan without negatively affecting rolling efficiency.Tall, toothy outer lugs ensure your favourite gravel descent doesn't unravel in the final corner.Single-ply 60tpi casing provides dependable protection at a minimal weight.Available with black or tan sidewalls in 40mm and 44mm widths.All Raddler tyres are TCS tubeless compatibleNylon fibres have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibres and minimises weight.
Speaking for itself, Raddler is the radder version of WTB s famed Riddler tread pattern. It combines the expeditious efficiency of a short-knob centreline with get-rad traction of chunky outer knobs. Let s call it a semi-slick, but one designed to increase confidence while you re pushing the limits of gravel. Raddler is an excellent choice for loose terrain where traction takes priority, but efficiency is never far behind. Lean it over, take the inside line, brake late and stay pinned with the Raddler.Short-knob centre tread cuts down on rolling resistance while still providing enough bite for out-of-the-saddle traction.Centre and intermediate knobs on the Raddler are slightly taller than those of the original Riddler, thereby increasing tyre lifespan without negatively affecting rolling efficiency.Tall, toothy outer lugs ensure your favourite gravel descent doesn't unravel in the final corner.Single-ply 60tpi casing provides dependable protection at a minimal weight.Available with black or tan sidewalls in 40mm and 44mm widths.All Raddler tyres are TCS tubeless compatibleNylon fibres have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibres and minimises weight.
Speaking for itself, Raddler is the radder version of WTB s famed Riddler tread pattern. It combines the expeditious efficiency of a short-knob centreline with get-rad traction of chunky outer knobs. Let s call it a semi-slick, but one designed to increase confidence while you re pushing the limits of gravel. Raddler is an excellent choice for loose terrain where traction takes priority, but efficiency is never far behind. Lean it over, take the inside line, brake late and stay pinned with the Raddler.Short-knob centre tread cuts down on rolling resistance while still providing enough bite for out-of-the-saddle traction.Centre and intermediate knobs on the Raddler are slightly taller than those of the original Riddler, thereby increasing tyre lifespan without negatively affecting rolling efficiency.Tall, toothy outer lugs ensure your favourite gravel descent doesn't unravel in the final corner.Single-ply 60tpi casing provides dependable protection at a minimal weight.Available with black or tan sidewalls in 40mm and 44mm widths.All Raddler tyres are TCS tubeless compatibleNylon fibres have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibres and minimises weight.