DVO Suspension Onyx SC Boost ForkTailor-made for exhilarating enduro adventures, the long travel alloy Onyx SC Boost Fork eats up every impact as you hurtle downhill towards the podium. Equipped with a Boost-sized axle for enhanced control and stiffness as the trail gets more rugged, DVO Suspension has ensured this highly adjustable Onyx model brings you a composed performance as you push yourself to the limit. Highly Tuneable, Deep Travel Enduro Fork This boldly built front fork features firm, medium and open modes, with six clicks of low-speed compression adjustment allowing you to set your ride to suit the terrain ahead. A further 30 high-speed compression adjustments take care of the bigger and bolder bumps to ensure a buttery smooth ride from top to bottom. The stroke-feel is enhanced by the Off The Top (OTT) fine-tuning system, rounding out this stunning addition to your front-end. Features: Stanchion Material: Alloy Steerer Size: Tapered 1.1/8" to 1.5" Steerer Material: Tapered Alloy Lowers Material: Magnesium Axle Type: 15x110mm Boost (thru-axle included) Suits Hub Width: 15x110mm Travel: 180mm Adjustable Travel: No Spring Type: Air Adjustments: High/Low-Speed Compression, Rebound, OTT Lockout: No Wheel Size: 27.5" Axle to Crown Length: 575mm Offset: 42mm Disc Brake Standard: Direct mount, 180mm rotor Weight: 2200gBuy DVO Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Rolling on a durable aluminium maxtal rim construction, this E-MTB wheelset is purpose-built for the increased speeds and torque produced by electric bike motors. Its wider 30mm internal rim width gives it additional stiffness and cornering precision, while its 28 threaded three-cross spokes deliver further lateral stiffness on rough terrains. Mavic has also equipped it with some of its finest technologies such as Pinch Flat Protection (PFP) and Fore Tapeless Tubeless technology, so you can benefit from a reduced chance of punctures, increased strength and tape-free tubeless tyre mounting. This makes it a great choice of upgrade for riders who want a strong and dependable wheelset wherever their next E-MTB adventure takes them. Tubeless-Ready E-MTB Wheelset Coming equipped with Mavic's patented PFP technology (Pinch Flat Protection), this wheelset's rims have a wider contact surface at the top of the sidewall to significantly reduce the risk of tyre cuts and punctures. The 30mm wide rims allow you to run lower tyre pressure for better traction and smooth-rolling efficiency. In addition, its patented Fore technology features a fully sealed upper rim bridge that eliminates the need for rim tape, making it the easiest system for mounting and changing tubeless tyres. Lightweight and Durable This E-MTB wheelset has been put through Mavic's ISM rim machining process, which removes material from the rims in strategic areas to minimise weight, without compromising strength, and its Black Shield treatment protects the rims against impacts and scratches. Mavic uses 28 straight-pull spokes (same spoke length throughout) for a strong connection between the rim and hub, while its ultra-reliable ID360 double ratchet system provides quick engagement and acceleration. Set up for 6-bolt disc brake mounts, these 29” wheels come complete with UST tubeless valves, spare spokes and accessories. Item Top Features Continued: Compatibility Front Axle: 15x110 Boost, convertible to 20x110 Boost thru-axle with adaptors Rear Axle: 12x148 Boost thru-axle Freewheel: Multiple options available to select from the drop-down menu Hubs Axles: Front: 15x110 Boost; Rear: 12x148 Boost 6-bolt brake rotor compatibility QRM Auto bearing preload technology Instant Drive 360 freewheel technology Spokes Material: Steel Nipples: Fore integrated Aluminium Count: 28 front and rear Lacing: Front and rear crossed 3, contactless Shape: Straight pull, flat, double-butted Weight Pair: 2070g (Front: 960g; Rear: 1110g) Max Rider Weight: 150kg (including bike) ASTM Category 5: Gravity riding focused on the descent Included Fore adjustment wrench 2 replacement spokes with each wheel Multi-function adjustment wrench (delivered with rear wheel) UST valve and accessories Manufacturer's Part Numbers: LP1634100 Black 29" Shimano (E-Deemax S 30 29 Pr Bst*) LP1632100 Black 29" SRAM XD SRAM XD (E-Deemax S 30 29 Pr Bst Xd*)
Mavic E-Deemax S 30 Mountain Bike WheelsetSpecifically designed to handle the demands of electric mountain bike (E-MTB) riding, this wheelset purpose-built for the increased speeds and torque produced by electric bike motors. Rolling on a durable aluminium maxtal rim construction, its wider 30mm internal rim width gives it additional stiffness and cornering precision, while its 28 threaded three-cross spokes deliver further lateral stiffness on rough terrains. Mavic has also equipped it with some of its finest technologies such as Pinch Flat Protection (PFP) and Fore Tapeless Tubeless technology, so you can benefit from a reduced chance of punctures, increased strength and tape-free tubeless tyre mounting. This makes it a great choice of upgrade for riders who want a strong and dependable wheelset wherever their next E-MTB adventure takes them.Tubeless-Ready E-MTB WheelsetComing equipped with Mavic's patented PFP technology (Pinch Flat Protection), this wheelset's rims have a wider contact surface at the top of the sidewall to significantly reduce the risk of tyre cuts and punctures. The 30mm wide rims allow you to run lower tyre pressure for better traction and smooth-rolling efficiency. In addition, its patented Fore technology features a fully sealed upper rim bridge that eliminates the need for rim tape, making it the easiest system for mounting and changing tubeless tyres.Lightweight and DurableThis E-MTB wheelset has been put through Mavic's ISM rim machining process, which removes material from the rims in strategic areas to minimise weight, without compromising strength, and its Black Shield treatment protects the rims against impacts and scratches. Mavic uses 28 straight-pull spokes (same spoke length throughout) for a strong connection between the rim and hub, while its ultra-reliable ID360 double ratchet system provides quick engagement and acceleration. Set up for 6-bolt disc brake mounts, these 29” wheels come complete with UST tubeless valves, spare spokes and accessories.Features: Rim Material: S6000 Aluminium Maxtal, Asymmetrical rim design Finish: Black Shield treatment (protects against impacts and scratches) Spoke Material: Steel Use: E-MTB Internal Rim Width: 30mm ETRTO: 622x30TC Tubeless Ready: Yes, Fore tapeless tubeless technology Tyre Compatibility: UST Tubeless and Tube type Brake Type: Disc, 6-bolt Recommended Tyre Sizes: 60mm to 76mm (2.35" to 3.0") Rim Technologies: SUP welding technology Front Axle: 15x110 Boost, convertible to 20x110 Boost thru-axle with adaptors Rear Axle: 12x148 Boost thru-axle Freewheel: Multiple options available to select from the drop-down menu Hub Technologies: Instant Drive 360 freewheel technology and QRM Auto bearing preload technology Spoke Count: Front and Rear: 28 Spoke Lacing: Front and Rear: Crossed 3, contactless Spoke Shape: Straight pull, flat, double-butted Spoke Nipples: Fore integrated Aluminium ASTM Category 5: Gravity riding focused on the descent Included: Fore adjustment wrench, 2x replacement spokes with each wheel, multi-function adjustment wrench (delivered with rear wheel), UST valve and accessories Max Rider Weight: 150kg (including bike) Weight: Pair: 2070g (Front: 960g; Rear: 1110g)Manufacturer's Part Numbers:LP1634100 Black 29" Shimano (E-Deemax S 30 29 Pr Bst*)LP1632100 Black 29" SRAM XD SRAM XD (E-Deemax S 30 29 Pr Bst Xd*)Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Mavic E-Deemax S 30 Mountain Bike WheelsetSpecifically designed to handle the demands of electric mountain bike (E-MTB) riding, this wheelset purpose-built for the increased speeds and torque produced by electric bike motors. Rolling on a durable aluminium maxtal rim construction, its wider 30mm internal rim width gives it additional stiffness and cornering precision, while its 28 threaded three-cross spokes deliver further lateral stiffness on rough terrains. Mavic has also equipped it with some of its finest technologies such as Pinch Flat Protection (PFP) and Fore Tapeless Tubeless technology, so you can benefit from a reduced chance of punctures, increased strength and tape-free tubeless tyre mounting. This makes it a great choice of upgrade for riders who want a strong and dependable wheelset wherever their next E-MTB adventure takes them.Tubeless-Ready E-MTB WheelsetComing equipped with Mavic's patented PFP technology (Pinch Flat Protection), this wheelset's rims have a wider contact surface at the top of the sidewall to significantly reduce the risk of tyre cuts and punctures. The 30mm wide rims allow you to run lower tyre pressure for better traction and smooth-rolling efficiency. In addition, its patented Fore technology features a fully sealed upper rim bridge that eliminates the need for rim tape, making it the easiest system for mounting and changing tubeless tyres.Lightweight and DurableThis E-MTB wheelset has been put through Mavic's ISM rim machining process, which removes material from the rims in strategic areas to minimise weight, without compromising strength, and its Black Shield treatment protects the rims against impacts and scratches. Mavic uses 28 straight-pull spokes (same spoke length throughout) for a strong connection between the rim and hub, while its ultra-reliable ID360 double ratchet system provides quick engagement and acceleration. Set up for 6-bolt disc brake mounts, these 29” wheels come complete with UST tubeless valves, spare spokes and accessories.Features: Rim Material: S6000 Aluminium Maxtal, Asymmetrical rim design Finish: Black Shield treatment (protects against impacts and scratches) Spoke Material: Steel Use: E-MTB Internal Rim Width: 30mm ETRTO: 622x30TC Tubeless Ready: Yes, Fore tapeless tubeless technology Tyre Compatibility: UST Tubeless and Tube type Brake Type: Disc, 6-bolt Recommended Tyre Sizes: 60mm to 76mm (2.35" to 3.0") Rim Technologies: SUP welding technology Front Axle: 15x110 Boost, convertible to 20x110 Boost thru-axle with adaptors Rear Axle: 12x148 Boost thru-axle Freewheel: Multiple options available to select from the drop-down menu Hub Technologies: Instant Drive 360 freewheel technology and QRM Auto bearing preload technology Spoke Count: Front and Rear: 28 Spoke Lacing: Front and Rear: Crossed 3, contactless Spoke Shape: Straight pull, flat, double-butted Spoke Nipples: Fore integrated Aluminium ASTM Category 5: Gravity riding focused on the descent Included: Fore adjustment wrench, 2x replacement spokes with each wheel, multi-function adjustment wrench (delivered with rear wheel), UST valve and accessories Max Rider Weight: 150kg (including bike) Weight: Pair: 2070g (Front: 960g; Rear: 1110g)Manufacturer's Part Numbers:LP1634100 Black 29" Shimano (E-Deemax S 30 29 Pr Bst*)LP1632100 Black 29" SRAM XD SRAM XD (E-Deemax S 30 29 Pr Bst Xd*)Buy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Mavic E-Deemax S 35 Mountain Bike WheelsetOffering exceptional traction, stability and control, this electric mountain bike (E-MTB) wheelset is built specifically for the most demanding of E-bike trail adventures. It features a robust aluminium maxtal rim construction with a 35mm internal rim width, which allows it to deliver superior grip, efficiency and comfort as you navigate across the rugged mountain terrain. Coming equipped with some of Mavic's finest technologies such as Pinch Flat Protection (PFP) and Fore Tapeless Tubeless technology, this is a great upgrade for riders who want increased stiffness, durability and a reduced risk of flats. Tubeless-Ready E-MTB WheelsetFeaturing Mavic's patented PFP technology (Pinch Flat Protection), this wheelset's rims have a wider contact surface at the top of the sidewall, which significantly reduces the risk of tyre cuts and punctures. The wider 35mm rims allow you to run lower tyre pressure for better traction, and the rims pair perfectly with trail tyres ranging from 2.6 to 3.2-inch. The patented Fore technology features a fully sealed upper rim bridge that eliminates the need for rim tape, making it the easiest system for mounting and changing tubeless tyres.Lightweight and DurableThis E-MTB wheelset has been put through Mavic's ISM machining process, which removes material from the rims in strategic areas to minimise weight, without compromising strength, and its Black Shield finish protects the rims against impacts and scratches. Mavic uses 28 straight-pull spokes (same spoke length throughout) for a strong connection between the rim and hub, while its ultra-reliable ID360 double ratchet system provides quick engagement and acceleration. Set up for 6-bolt disc mounts, these 27.5” wheels come complete with UST tubeless valves, spare spokes and accessories.Features: Rim Material: S6000 Aluminum Maxtal, Asymmetrical rim design Finish: Black Shield treatment (protects against impacts and scratches) Spoke Material: Steel Use: E-MTB Internal Rim Width: 35mm ETRTO: 584x35TC Tubeless Ready: Yes, Fore tapeless tubeless technology Tyre Compatibility: UST Tubeless and Tube type Brake Type: Disc, 6-bolt Recommended Tyre Sizes: 65mm to 81mm (2.5" to 3.2") Rim Technologies: SUP welding technology Front Axle: 15x110 Boost, convertible to 20x110 Boost thru-axle with adaptors Rear Axle: 12x148 Boost thru-axle Freewheel: Multiple options available to select from the drop-down menu Hubs: Front: 15x110 Boost; Rear: 12x148 Boost Hub Technologies: Instant Drive 360 freewheel technology and QRM Auto bearing preload technology Spoke Count: Front and Rear: 28 Spoke Lacing: Front and Rear: Crossed 3, contactless Spoke Shape: Straight pull, flat, double-butted Spoke Nipples: Fore integrated Aluminium ASTM Category 5: Gravity riding focused on the descent Included: Fore adjustment wrench, 2x replacement spokes with each wheel, multi-function adjustment wrench (delivered with rear wheel), UST valve and accessories Max Rider Weight: 150kg (including bike) Weight: Pair: 2030g (Front: 940g; Rear: 1090g)Manufacturer's Part Numbers:LP1631100 Black 27.5" ShimanoLP1628100 Black 27.5" SRAM XDBuy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Garmin Rally XC100 MTB Power Meter PedalsBringing you some of Garmin’s top cycling technologies but at a slightly more affordable price point, the Rally XC100 Pedal Power Meter pedals build on the success of the Vector 3S model. This Shimano Pedalling Dynamics (SPD) compatible pair work with most mountain bike (MTB) shoes on the market and give you single-sided power and cadence data, which you can then double up to get an accurate calculation of your overall output. These pedals are the ideal upgrade for those who want to take their training seriously, in order to see serious results on race day.Single-Sided Pedalling AnalysisGarmin's Rally power meters are tested to the extreme, so you can ride there too. Designed for off-road cyclists, you can even monitor how you apply power throughout the pedal stroke. These durable power meter pedals install like any other pedals and are easy to transfer between bikes. Now you can have power readings whether you ride gravel, cross-country (XC) mountain bike (MTB) or even cyclocross (CX).ANT+ and Bluetooth ConnectivityThe ANT+ and Bluetooth technology in these smart pedals enables you to instantly see accurate power measurements on your compatible Garmin device (sold separately) or smartphone and review later on the Garmin Connect app. View your data on popular applications such as Strava, TrainingPeaks and TrainerRoad for further analysis, sharing and more. Features: Rally XC100 single-sensing power meter measures total power and cadence Rally XC100 is an affordable power meter with the option to upgrade to a dual-sensing system Installs like any other pedal and quickly transfers between bikes Superior pedal design installs like any other pedal and quickly transfers between bikes; compatible with Shimano SPD cleats Sleek design provides greater cornering clearance and improved stack height Fully integrates with Garmin cycling ecosystem for data analysis Allows for easy software updates via your Garmin watch, Edge cycling computers or the Garmin ConnectTM app on your compatible smartphone For post-ride analysis, data sharing, mapping, route planning and more, sync your data with the Garmin Connect app as well as platforms such as Strava, TrainingPeaks and TrainerRoad When the seasons change, you can transfer the spindle between Rally RS/Rally XC pedal body kits (sold separately), which are also compatible with the Vector 3 power meter Field calibration Adjustable cleat release tension Axle Size: Standard 9/16" thread Cleat Type: Shimano SPD (cleats included) Battery Type: LR44/SR44 (x4) Battery Life: up to 120 hours (with LR44 battery type) Accuracy: +/- 1.0% Communication: ANT+ and Bluetooth Box Includes: 2x Rally XC100 power pedals, cleats with 6 degrees of float, documentationBuy Garmin Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The MHT 8.6 Womens combines trail friendly geometry with cross-country speed for a fast and confidence inspiring ride. The frame is designed to give a reassuring level of stability as you navigate technical sections and Suntour’s Raidon air-sprung fork offers 120mm of highly tuneable travel to cope with whatever trails you chose.The MHT 8.6 features the new Shimano Deore M4100 1x 10 drivetrain coupled with an 11-46T cassette giving plenty of range with precise shifts. The bike is built on 27.5 inch wheels which give fantastic rolling speed and smoothness and comes with Vittoria Barzo tyres which give fantastic grip both in dry loose conditions as well as on muddier, wetter days. Braking is taken care of with powerful Tektro HD-M286 hydraulic discs, with a shorter reach to the lever to suit smaller hands.With a female specific saddle, handlebar widths and geometry, the MHT 8.6 should be a comfortable ride as well as a fast one.Key Features:Shimano Deore M4100 1x10 gearing with an 11-46T cassette giving a great range,Light but strong hidden-weld alloy frame with trail geometry and dropper post routing.,Suntour Raidon XC Air Fork with 120mm of travel,Tektro M286 hydraulic disc brakes for controlled and reliable stopping,Boardman Tubeless ready wheelset with grippy Vittoria Barzo tyres.
For 2021, the Boardman MHT 8.6 gets updated to 29 inch wheels, delivering the same fast rolling and confidence inspiring handling as the 8.8 and 8.9 higher up the range. Perfect for trail centre fun and long days of cross-country exploring, the MHT 8.6 is a great all-rounder for UK riding. Shimano’s new Deore M4100 10 speed gearing with 32t chainring and 11-46t cassette gives a small crawler gear for steep climbs, with plenty of top end range for flying down descents. Suntour’s Raidon air-sprung fork offers 120mm of highly tuneable travel to cope with whatever trails you chose. Tekrto HD-M285 hydraulic disc brakes keep speed under control, and combine with Vittoria’s aggressive cross-country tread Barzo tyres to help navigate steep and technical terrain. Highlights Shimano Deore M4100 1x10 gearing with an 11-46T cassette giving a great range,Light but strong hidden-weld alloy frame with trail geometry and dropper post routing. ,Suntour Raidon XC Air Fork with 120mm of travel ,Tektro M285 hydraulic disc brakes for controlled and reliable stopping ,Boardman Tubeless ready wheelset with grippy Vittoria Barzo tyres.
Level Up. A mountain bike built to raise your game and ignite a passion for the trail. Designed for the mountains and ready for anything. Where it thrives Low-impact trails gravel roads leisurely ride What it's built for Handling durability Highlights Light and durable SmartForm C3 Alloy frame SR Suntour XCM suspension fork 100mm travel remote lockout microSHIFT Advent X 10-speed shifting / Shimano hydraulic disc brakes Frame SmartForm C3 Alloy SAVE 1-1/8' headtube post mount disc StraightShot internal cable routing dropper post compatible BSA-73 Fork SR Suntour XCM 100mm coil 42mm offset (27.5') 46mm offset (29') Rims WTB SX19 32h Hubs (F) Shimano HBTX 505 / (R) Shimano FHTX505 Spokes Stainless Steel 14g Tires WTB Ranger Comp 27.5/29 x 2.25' DNA Compound Pedals Cannondale Platform Crank Prowheel Charm 30T Bottom Bracket Cartridge square taper Chain KMC X10 10-speed Rear Cogs microSHIFT 11-48T 10-speed Rear Derailleur microSHIFT Advent X Shifters microSHIFT Advent X 10-Speed Handlebar Cannondale Riser 6061 Alloy 25mm rise 8° sweep 6° rise 720mm Grips Cannondale Dual-Density Stem 6061 Alloy 31.8 7° Headset Semi Integrated 1-1/8' Brakes Shimano MT200 hydraulic disc 160/160mm RT10 rotors Brake Levers Shimano MT200 hydraulic disc Saddle Cannondale Stage 2 Women's Seatpost 6061 Alloy 31.6 x 350mm Speeds 10
Level Up. A mountain bike built to raise your game and ignite a passion for the trail. Designed for the mountains and ready for anything. Where it thrives Low-impact trails gravel roads leisurely ride What it's built for Handling durability Highlights Light and durable SmartForm C3 Alloy frame SR Suntour XCM suspension fork 100mm travel microSHIFT Advent X 10-speed shifting / Shimano hydraulic disc brakes Frame SmartForm C3 Alloy SAVE 1-1/8' headtube post mount disc StraightShot internal cable routing dropper post compatible BSA-73 Fork SR Suntour XCM 100mm coil 42mm offset (27.5') 46mm offset (29') Rims WTB SX19 32h Hubs (F) Shimano HBTX 505 / (R) Shimano FHTX505 Spokes Stainless Steel 14g Tires WTB Ranger Comp 27.5/29 x 2.25' DNA Compound Pedals Cannondale Platform Crank Prowheel Charm 30T Bottom Bracket Cartridge square taper Chain KMC X10 10-speed Rear Cogs microSHIFT 11-48T 10-speed Rear Derailleur microSHIFT Advent X Shifters microSHIFT Advent X 10-Speed Handlebar Cannondale Riser 6061 Alloy 25mm rise 8° sweep 6° rise 720mm Grips Cannondale Dual-Density Stem 6061 Alloy 31.8 7° Headset Semi Integrated 1-1/8' Brakes Shimano MT200 hydraulic disc 160/160mm RT10 rotors Brake Levers Shimano MT200 hydraulic disc Saddle Cannondale Stage 3 Seatpost 6061 Alloy 31.6 x 350mm Speeds 10
Ready for training, this road bike powermeter is equipped with two high-quality carbon crank arms that ensure fantastic stiffness, durability and low weight as you aim to beat your personal performance goals. Quarq has also designed this chassis-only version for compatibility with Shimano Dura-Ace R9100 or Ultegra R8000 chainrings for excellent power delivery and precision on your ride. Thanks to its spider powermeter, this model provides riders with accuracy within 1.5%, measuring both legs for reliable, accurate power analysis. Another highlight is it comes complete with many of Quarq's renowned technologies such as MagicZero, AxCad and OmniCal as well as 10K Temperature Compensation and an IPX7 waterproof rating for reliability and consistency in any weather conditions. Bluetooth and ANT+ Compatible Your riding and training efforts deserve power measurement that reaches the highest standards of accuracy to help you reach personal records. Because without accurate data, you can’t know if you are making the progress you’re aiming for. With Quarq’s DFour power measurement technology that uses Bluetooth and ANT+ connectivity, you’ll have the technology to get real results. Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DFour DUB Power Meter is paired with the Quarq DUB Crankarms to pair with your Dura-Ace R9100 or Ultegra R8000 chainrings. A SRAM DUB Bottom Bracket will be required for installation (available separately). Additional Item Top Features: Connectivity: Bluetooth or ANT+ Battery: CR2032 Battery Life: 200-hour battery life, change without tools Waterproof Rating: IPX7 Accuracy: Within 1.5%, measuring both legs Compatible Chainrings: Shimano Dura-Ace R9100 or Ultegra R8000 road chainrings Chainrings Included: No Technologies: DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It’s where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this approach to developing a complete system that equals better drivetrain performance. Connectivity: Bluetooth low energy technology and ANT+ wireless data transfer. MagicZero: Automatically checks and recalibrates your power meter as you ride – no need to manually calibrate. AxCad: No cadence magnet required. Battery: CR2032, 200-hour battery life, change without tools. OmniCal: Swap chainrings without affecting accuracy. Accuracy: Within 1.5%, measuring both legs. 10K Temperature Compensation. IPX7 waterproof rating. Manufacturer's Part Number: 00.3018.292.170 Black 170mm 00.3018.292.172 Black 172.5mm 00.3018.292.175 Black 175mm
Quarq DFOUR Road Power Meter ChassisThis road bike powermeter features two high-quality carbon crank arms that ensure fantastic stiffness, durability and low weight as you smash your personal performance goals. Quarq has also designed this chassis-only version for compatibility with Shimano Dura-Ace R9100 or Ultegra R8000 chainrings for excellent power delivery and precision on your ride. Thanks to its spider powermeter, this model provides riders with accuracy within 1.5%, measuring both legs for reliable, accurate power analysis. Another highlight is it comes complete with many of Quarq's renowned technologies such as MagicZero, AxCad and OmniCal as well as 10K Temperature Compensation and an IPX7 waterproof rating for reliability and consistency in any weather conditions.Bluetooth and ANT+ CompatibleYour riding and training efforts deserve power measurement that reaches the highest standards of accuracy to help you reach personal records. Because without accurate data, you can't know if you are making the progress you're aiming for. With Quarq's DFour power measurement technology that uses Bluetooth and ANT+ connectivity, you'll have the technology to get real results. Reach new goals and explore new roads with a power meter that delivers on accuracy, durability, and reliability. The Quarq DFour DUB Power Meter is paired with the Quarq DUB Crankarms to pair with your Dura-Ace R9100 or Ultegra R8000 chainrings. A SRAM DUB Bottom Bracket will be required for installation (available separately). Features: Crank Arm Material: Carbon Use: Road Power Meter Type: Spider BCD: 110 Speed: 11 speed BB Spindle Interface: DUB BB Compatibility: All SRAM Road DUB bottom brackets Bottom Bracket Included: No, available separately Guard: No guard Connectivity: Bluetooth or ANT+ Battery: CR2032 Battery Life: 200-hour battery life, change without tools Waterproof Rating: IPX7 Accuracy: Within 1.5%, measuring both legs Compatible Chainrings: Shimano Dura-Ace R9100 or Ultegra R8000 road chainrings Chainrings Included: NoTechnologies: DUB: The relationship between bottom bracket spindle and bearing is the core of DUB technology. It's where stiffness meets durability. Quarq took it a step beyond conventional thinking and made everything simpler—better integrating the relationship between chainring, crank, spindle and bottom bracket. It's this approach to developing a complete system that equals better drivetrain performance. Connectivity: Bluetooth low energy technology and ANT+ wireless data transfer. MagicZero: Automatically checks and recalibrates your power meter as you ride - no need to manually calibrate. AxCad: No cadence magnet required. Battery: CR2032, 200-hour battery life, change without tools. OmniCal: Swap chainrings without affecting accuracy. Accuracy: Within 1.5%, measuring both legs. 10K Temperature Compensation. IPX7 waterproof rating.Manufacturer's Part Numbers: 00.3018.292.170 Black 170mm 00.3018.292.172 Black 172.5mm 00.3018.292.175 Black 175mm Buy Quarq Components from Chain Reaction Cycles, the World's Largest Online Bike Store.