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Nukeproof Horizon Bottom Bracket GXP - Silver - 83mm - English Thread}, Silver
  • £39.99
  • RRP £49.99
  • Saving you £20

Nukeproof Horizon Bottom Bracket GXPPrepared for intense MTB rides, this bottom bracket is engineered for unpredictable riding conditions on your mountain bike. It features a machined alloy construction, which makes it more than capable of handling all the abuse associated with all-day epics on the mountain bike trails. Nukeproof has also equipped this trail-ready bottom bracket with an anodised finish, which gives it an extra layer of protection against corrosion. MTB Bottom Bracket with Titanium Coated BearingsAll set for fast-paced mountain bike adventures, this bottom bracket is equipped with titanium coated race bearings and stainless-steel balls. The titanium coating is applied in a vaporised vacuum environment, which allows its structure and density to be fine-tuned. ABEC 5 certified and protected against the elements, the Nukeproof Bottom Bracket GXP is an excellent upgrade for riders who want a reliable component on tough mountain bike rides.Please note: Nukeproof are also offering a two-year warranty on their bottom brackets including the bearings. Click here to view how to replace your SRAM GXP Bottom Bracket.Click here to view and download our Nukeproof Technical Manual BSA 83mm GXP to ensure compatibility.Click here to view and download our Nukeproof Technical Manual BSA 68 73mm GXP to ensure compatibility.InstallationA Shimano Hollowtech II type tool is required for installation - 16 notch 44mm OD. available hereFeatures: Cup Material: Alloy Bearing Material: Titanium coated race bearings Ball Material: Stainless-Steel Finish: Anodised Use: MTB Compatibility: SRAM GXP Thread: BSA 1.37"x24 TPI Certification: ABEC 5Manufacturer Part Numbers: Black 83mm: NUKTK878GM-83-TSBB Black 68-73mm: NUKTK878GM-TSBB Blue 68-73mm: NUKTK878GM-TSBBBLU Blue 83mm: NUKTK878GM-83-TSBBBLU Copper 68-73mm: NUKTK878GM-TSBBCOP Copper 83mm: NUKTK878GM-83-TSBBCOP Grey 68-73mm: NUKTK878GM-TSBBGRY Grey 83mm: NUKTK878GM-83-TSBBGRY Purple 68-73mm: NUKTK878GM-TSBBPUR Purple 83mm: NUKTK878GM-83-TSBBPUR Red 68-73mm: NUKTK878GM-TSBBRED Red 83mm: NUKTK878GM-83-TSBBREDBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon Bottom Bracket GXP - Silver - 68/73mm - English Thread}, Silver
  • £44.99
  • RRP £49.99
  • Saving you £10

Nukeproof Horizon Bottom Bracket GXPPrepared for intense MTB rides, this bottom bracket is engineered for unpredictable riding conditions on your mountain bike. It features a machined alloy construction, which makes it more than capable of handling all the abuse associated with all-day epics on the mountain bike trails. Nukeproof has also equipped this trail-ready bottom bracket with an anodised finish, which gives it an extra layer of protection against corrosion. MTB Bottom Bracket with Titanium Coated BearingsAll set for fast-paced mountain bike adventures, this bottom bracket is equipped with titanium coated race bearings and stainless-steel balls. The titanium coating is applied in a vaporised vacuum environment, which allows its structure and density to be fine-tuned. ABEC 5 certified and protected against the elements, the Nukeproof Bottom Bracket GXP is an excellent upgrade for riders who want a reliable component on tough mountain bike rides.Please note: Nukeproof are also offering a two-year warranty on their bottom brackets including the bearings. Click here to view how to replace your SRAM GXP Bottom Bracket.Click here to view and download our Nukeproof Technical Manual BSA 83mm GXP to ensure compatibility.Click here to view and download our Nukeproof Technical Manual BSA 68 73mm GXP to ensure compatibility.InstallationA Shimano Hollowtech II type tool is required for installation - 16 notch 44mm OD. available hereFeatures: Cup Material: Alloy Bearing Material: Titanium coated race bearings Ball Material: Stainless-Steel Finish: Anodised Use: MTB Compatibility: SRAM GXP Thread: BSA 1.37"x24 TPI Certification: ABEC 5Manufacturer Part Numbers: Black 83mm: NUKTK878GM-83-TSBB Black 68-73mm: NUKTK878GM-TSBB Blue 68-73mm: NUKTK878GM-TSBBBLU Blue 83mm: NUKTK878GM-83-TSBBBLU Copper 68-73mm: NUKTK878GM-TSBBCOP Copper 83mm: NUKTK878GM-83-TSBBCOP Grey 68-73mm: NUKTK878GM-TSBBGRY Grey 83mm: NUKTK878GM-83-TSBBGRY Purple 68-73mm: NUKTK878GM-TSBBPUR Purple 83mm: NUKTK878GM-83-TSBBPUR Red 68-73mm: NUKTK878GM-TSBBRED Red 83mm: NUKTK878GM-83-TSBBREDBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon Threaded 30mm Bottom Bracket - Silver - 73mm - English Thread}, Silver
  • £49.99
  • RRP £59.99
  • Saving you £17

Nukeproof Horizon Threaded 30mm Bottom BracketThe Horizon Bottom Bracket (30mm) from Nukeproof is changed for tearing up challenging terrain on your mountain bike (MTB). Made from a machined alloy construction, it is incredibly durable and can withstand all-day adventures on the mountain. Nukeproof has also added an anodised finish to this bottom bracket, for added protection against corrosion. MTB Bottom Bracket with Titanium Coated BearingsAll set for fast-paced mountain bike adventures, this bottom bracket is equipped with titanium coated race bearings and stainless-steel balls. The titanium coating is applied in a vaporised vacuum environment, which allows its structure and density to be fine-tuned. ABEC 5 certified and protected against the elements, the Nukeproof Bottom Bracket 30mm is an excellent upgrade for riders who want a reliable component on tough mountain bike rides. 16 notch 49mm OD cup tool is required for fitting (available separately).Please note: Nukeproof are also offering a two-year warranty on their bottom brackets including the bearings.Click here to view and download our Nukeproof Technical Manual BSA 30mm to ensure compatibility.Features: Cup Material: Alloy Bearing Material: Titanium coated race bearings Ball Material: Stainless-Steel Finish: Anodised Use: MTB  Compatibility: 30mm spindle cranks Bottom Bracket Compatibility: 73mm Bottom Bracket shells Thread: BSA 1.37"x24 TPI Certification: ABEC 5Manufacturer Part Numbers: Black: NUKBB392BSA-TSBB Blue: NUKBB392BSA-TSBBBLU Copper: NUKBB392BSA-TSBBCOP Grey: NUKBB392BSA-TSBBGRY Purple: NUKBB392BSA-TSBBPUR Red: NUKBB392BSA-TSBBREDBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Nukeproof Horizon Bottom Bracket SRAM DUB BSA - Silver - 68/73mm - English Thread}, Silver
  • £54.99
  • RRP £59.99
  • Saving you £8

Nukeproof Horizon Bottom BracketThe Horizon Bottom Bracket from Nukeproof is ready to tackle challenging mountain bike (MTB) terrains. Its machined alloy construction is highly durable and boasts an anodised finish, which adds an extra protective layer against corrosion, so you know it's more than capable no matter what the trail throws at you.   MTB Bottom Bracket with Titanium Coated BearingsAll set for fast-paced mountain bike adventures, this bottom bracket is equipped with titanium coated race bearings and stainless-steel balls. The titanium coating is applied in a vaporised vacuum environment, which allows its structure and density to be fine-tuned. ABEC 5 certified and protected against the elements, the Nukeproof Horizon Bottom Bracket is an excellent upgrade for riders who want a reliable component on tough mountain bike rides.Please note: Nukeproof is also offering a two-year warranty on their bottom brackets including the bearings.Click here to view and download our Nukeproof Technical Manual to ensure compatibility.Click here to view and download How to Fit Nukeproof Bottom Bracket (DUB).InstallationA 12 notch 46mm OD bottom bracket tool is required for installation available hereFeatures: Cup Material: Alloy Bearing Material: Titanium coated race bearings Ball Material: Stainless-Steel Finish: Anodised Use: MTB Compatibility: SRAM DUB cranks Thread: BSA 1.37"x24 TPI Certification: ABEC 5Manufacturer Part Numbers: Black 68-73mm: NUKBB29BSA-TSBB Blue 68-73mm: NUKBB29BSA-TSBBBLU Copper 68-73mm: NUKBB29BSA-TSBBCOP Grey 68-73mm: NUKBB29BSA-TSBBGRY Purple 68-73mm: NUKBB29BSA-TSBBPUR Red 68-73mm: NUKBB29BSA-TSBBREDBuy Nukeproof Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Suspension Float X2 Factory 2-Position Adjust Shock - 230mm Length x 57.5mm Stroke
  • £690.00
  • RRP £769.00
  • Saving you £10

Fox Suspension Float X2 Factory 2-Position Adjust ShockFeaturing an updated chassis and damper, this high-quality mountain bike (MTB) rear shock delivers game-changing performance as you conquer the most demanding of trail conditions. Part of Fox Suspension's renowned Factory Series, this model is packed with features and includes a genuine Kashima coating for increased durability as well as slippery smooth operation on your ride. Coming equipped with a two-position open/firm lever for easy adjustment, Variable Valve Control (VVC) for improved high-speed rebound tunability and a lightweight air spring that provides coil-like comfort, this model is a perfect upgrade for smooth and reliable rear-end suspension.Features: Finish: Genuine Kashima coating Use: MTB Spring Type: Air spring Adjustment Lever: 2-position Open/Firm lever (retains high and low speed compression adjustment) Adjustment Features: High and low speed compression, high and low speed rebound Variable Valve Control (VVC) Rebound: Yes Max PSI: 300psiTechnologies: Factory Series: “Factory” says it all - feature-packed and designed to exceed the demands of our Factory-level riders. What we sell is what they race. Factory Series products feature slippery smooth, ultra-durable Genuine Kashima Coat. Updated Damper: The Float X2's 4-way adjustable, twin-tube architecture now features patented Variable Valve Control (VVC) technology on the high-speed rebound circuit for unrivalled external fine-tuning. Updated compression ratios and a MCU bumper deliver improved progressivity and bottom out control with fewer volume spacers. Independent Firm Mode Circuit: A 2-position switch operates on an independent circuit, providing a notably firmer lockout than before, allowing for efficient climbing and wide-open descending. Updated Chassis: Float X2's entirely revised chassis features an ultra-low friction hard chrome damper shaft, updated low-friction bushings and seals, and genuine Kashima coated outer body for smoother performance than ever before. High-flow main piston. Improved bearing ratio for metric sizes. Improved high-speed rebound tunability via addition of VVC (Variable Valve Control). Increased control and decreased harshness via linear damping. Reduced length reservoir for better fit on more frames. Finned inner body for improved structural rigidity and reduced hysteresis. Matching 8-click HSC and HSR adjustment on GRIP2 forks and X2 shocks. Updated compression ratios, 300psi max.Buy Fox Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Suspension DHX2 Factory 2 Position Adjust Shock - 230mm Length x 65mm Stroke
  • £749.00

Fox Suspension DHX2 Factory 2 Position Adjust ShockReady for all-day epics on your favourite local trails, this mountain bike (MTB) rear shock features a coil spring ready design, an updated chassis and damper plus a high-flow main piston for precise and controlled handling on the most demanding of terrains. Part of Fox Suspension's prestigious Factory Series, this model is kitted out with proven technologies and is designed to exceed the demands of Factory-level riders.Adjustable Coil Spring Rear ShockBenefitting from Fox Suspension's finest technologies for modern mountain bike riding, this rear shock is equipped with a coil spring ready design and an updated damper. The updated X2 damper maintains a twin tube architecture, employing a proven dual-shim stack main piston for improved damping and more precise tuning than ever before. Fox Suspension also added its patented Variable Valve Control (VVC) technology to the high-speed rebound (HSR) circuit, which allows for easy, external fine-tuning of your suspension performance. Just like GRIP2 forks, the X2 family of shocks also feature identical 8 clicks of adjustment on high-speed compression (HSC) and high-speed rebound (HSR). This allows you to make consistent adjustments between their front and rear suspension. Nothing sticks to the ground quite like a coil shock. With an entirely updated chassis and damper, enhanced tunability, smoother action, and a MCU bumper for progressivity and end-stroke control - the Fox Suspension DHX2 Factory 2Pos-Adj Shock is ready to race straight out of the gate.Please note: A coil spring is not included with this model but is available to purchase separately.Features: Shaft Coating: Chromoly (CrMo) Steel Use: MTB Spring Type: Coil spring Adjustment Lever: 2-position Open/Firm lever (retains high and low speed compression adjustment) Adjustment Features: High and low speed compression, high and low speed rebound Variable Valve Control (VVC) Rebound: Yes Detents on Spring Collar: Yes Spring Included: No, available separatelyTechnologies: Factory Series: “Factory” says it all - feature-packed and designed to exceed the demands of Fox Suspension's Factory-level riders. What we sell is what they race. Updated Chassis: The outer body on the DHX2 features steel construction with finned inner tubes for reduced hysteresis. DHX2 features an updated low-friction hard chrome coating on the shaft with new seals designed to pair perfectly to the new shaft coating, reducing frictions and increasing seal life. Updated Damper: The updated X2 damper maintains a twin tube architecture, emplying a proven dual-shim stack main piston for improved damping and more precise tuning than ever before. Fox Suspension added its patented VVC technology to the HSR circuit. VVC is a proprietary variable valve technology that allows for easy, external fine-tuning of suspension performance. Just like GRIP2 forks, the X2 family of shocks also feature identical 8 clicks of adjustment on HSC and HSR. This allows the rider to make consistent adjustments between front and rear suspension. MCU Bumper: The updated MCU bumper is designed to allow for supple beginning and mid-stroke, seamlessly transitioning to a bottomless end-stroke. Independent Firm Mode Circuit: This version's 2-position switch operates on an independent circuit, resulting in a firmer lockout. Revised Spring Changes: The coil-sprung DHX2 now uses a full spring collar, held in place with a C-clip, and a new preload collar with indexed notches to allow for light preload without the collar backing off.Buy Fox Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Fox Suspension Float X Factory 2Pos-Adj Shock - 185mm Length x 55mm Stroke
  • £549.99
  • RRP £659.00
  • Saving you £17

Fox Suspension Float X Factory 2Pos-Adj ShockThis mountain bike (MTB) rear shock is part of the prestigious Factory Series and is developed for maximum rear-end suspension performance on the most demanding of trail conditions. It features a wide range of adjustment features including an independent two-position Open/Firm lever, which allows you to easily dial-in your ideal settings to match your riding style as well as the terrain. Fox Suspension has also kitted out this model with 16 clicks of Low Speed Rebound and 11 clicks of Low Speed Compression, so you can benefit from a more rider-tuned feel with high-performance damping wherever your ride takes you. Coming complete with a genuine Kashima coating, this high-quality Factory Series version delivers enhanced lubrication and a harder wearing surface, which results in increased shock smoothness and sensitivity on the trails.Heavyweight Features in a Lightweight PackageDesigned specifically to meet the demands of aggressive trail riders, the Float X combines sophisticated damping and fade-free performance with incredible light weight and outstanding structural integrity.Features: Body Finish: Kashima Coat Air Sleeve Finish: Kashima Coat Use: MTB Adjustments: Independent 2 Position Open/Firm Lever, Low Speed Rebound: 16 Clicks, Low Speed Compression: 11 ClicksTechnologies: Factory Series: “Factory” says it all - feature-packed and designed to exceed the demands of Factory-level riders. What we sell is what they race. Updated chassis and damper. High-flow main piston. Air seal package. Volume spacers with smaller increments. MCU bottom out bumper. Numbered tool-free 12 position single-turn LSC (Low Speed Compression) adjuster. Independent firm mode circuit - Clockable 2 position adjuster. Increased rebound adjuster range (over DPX2). Optimized reservoir lengths per shock size. Hydraulic top out feature. Reduced damper noise. Larger air sleeve bore reduces average rider pressure by 40 psi vs. DPX2. Bearing hardware compatible both sides. Air valve location offers improved frame fitment and pump access.Manufacturer's Part Numbers: 979-01-053 230x65mm Metric 979-01-054 185x52.5mm Trunnion 979-01-056 185x55mm Trunnion 979-01-058 205x60mm Trunnion 979-01-059 205x62.5mm Trunnion 979-01-041 190x45mm Metric 979-01-043 210x50mm Metric 979-01-045 210x52.5mm Metric 979-01-047 210x55mm Metric 979-01-049 230x57.5mm Metric 979-01-051 230x60mm MetricBuy Fox Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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100% Status Youth Helmet 2021 - Topenga Orange-Black - M}, Topenga Orange-Black
  • £89.40
  • RRP £149.00
  • Saving you £40

100% Status Youth HelmetThe 100% Status Youth Helmet gives young mountain bike rippers the protection and comfort they need to keep pushing and progressing their riding to ever more technical and gnarly MTB trails. Porting over some of the best features from 100%’s championship-winning Aircraft helmet, the Status Youth helmet delivers high-quality protection and comfort without breaking the bank. It achieves this balance thanks to its ultra-light fibreglass construction that protects without adding extra weight. This works in combination with an EPS foam liner to absorb crash impacts. The padded PU chinbar also enhances all-around protection.  Plenty of ventilation is provided by the Active cooling system. This maximises the airflow over your head, keeping you cooler when you're pushing your mountain biking limits. Trail Ready Details. The washable comfort liner, cheek pads and chin strap covers make keeping your lid fresh and clean an easy affair. The adjustable visor lets you get it at just how you like it. And the Status is also compatible with inflatable emergency helmet release systems for total peace of mind when you're taking your mountain biking to the next level.Features:Ultra-light design featuring fibreglass shellActive cooling system maximizes airflow offering maximum ventilation while riding and also while rider is stationaryWashable comfort liner, cheek pads and chin strap coversEngineered with 2 shell sizes and 2 EPS sizes to achieve the perfect fitCompatible with inflatable emergency helmet release systemsPadded PU chinbar interior for enhanced impact protectionAdjustable visor with light-weight screwsBuy 100% Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Challenge SuperLite Corsa Latex Road Inner Tube - 700c}
  • £9.99
  • RRP £16.00
  • Saving you £38

Challenge SuperLite Corsa Latex Road Inner TubeLatex inner tubes: Used in all high end tubular thanks to their low rolling resistance. Thinner and more flexible than butyl tubes.The use in open tubulars increases comfort and lowers rolling resistance. Latex is also more resistant to punctures. On the other hand it is a porous material therefore it requires daily inflation. Saving more than three watts per wheel over a butyl inner tube, this road bike tube gives you lighter and softer performance.Puncture protection is also greatly improved as latex extends and expands 7 to 8 times its original size, whereas butyl only about 1.5x meaning that latex is much, much more flexible and not immediately prone to punctures. Unlike the stiffer butyl, latex will first expand and wrap itself all around a protruding object and often isn't successful puncturing through even after working itself all the way in the tyre.The best performance and comfort combination is the latex inner tube with a handmade clincher, although the latex tube can also improve the ride of any other type of clincher.Replacing the standard butyl inner tubes (even superlight ones) with the Challenge seamless latex inner tube is by far the most affordable way of improving the performance and overall feel of your bike.Features: Use: Handmade Clincher Tyres Valve: Presta Removable Core Valve length: 48mm Size: 700 Tyre Width: 19mm-28mm Weight: 60gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Challenge SuperLite Cross Latex CX Inner Tube - 700c}
  • £15.99
  • RRP £18.00
  • Saving you £11

Challenge SuperLite Cross Latex CX Inner TubeLatex inner tubes: Used in all high end tubular thanks to their low rolling resistance. Thinner and more flexible than butyl tubes.The use in open tubulars increases comfort and lowers rolling resistance. Latex is also more resistant to punctures. On the other hand it is a porous material therefore it requires daily inflation. Saving more than three watts per wheel over a butyl inner tube, this road bike tube gives you lighter and softer performance.Puncture protection is also greatly improved as latex extends and expands 7 to 8 times its original size, whereas butyl only about 1.5x meaning that latex is much, much more flexible and not immediately prone to punctures. Unlike the stiffer butyl, latex will first expand and wrap itself all around a protruding object and often isn't successful puncturing through even after working itself all the way in the tyre.The best performance and comfort combination is the latex inner tube with a handmade clincher, although the latex tube can also improve the ride of any other type of clincher.Replacing the standard butyl inner tubes (even superlight ones) with the Challenge seamless latex inner tube is by far the most affordable way of improving the performance and overall feel of your bike.Features: Use: Handmade Clincher Tyres Valve: Presta Removable Core Valve Length: 48mm Size: 700 Tyre Width: 29-38mm Weight: 75gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Challenge Baby Limus Open Cyclocross Tyre - Black - Tan - Folding Bead, Black - Tan
  • £49.99
  • RRP £60.00
  • Saving you £17

Challenge Baby Limus Open Cyclocross TyreWith Limus outer knobs for good traction in the bends and lower faster centre line knobs (for more all-around use), it's also wide spaced for dirt/mud clearance. The Baby Limus is the perfect tyre for winners.Open tubular differ from traditional clinchers for the construction. The Tyre is produced just like a tubular and uses the same materials and production process. Instead of being sewed with an inner tube inside, at the end of the process beads are made by folding the casing around Aramid fibers threads. For this reason an open tubular gives very similar ride feel of that of a tubular, mainly if a latex inner tube is used.Mounting an open tubular on a wheel is the same as mounting a standard clincher but with the advantage of riding a much more comfortable and performing tyre. This all-round cyclocross tyre is a perfect choice of upgrade for staying in control as you ride across wet sand or sticky mud terrain conditions.Features: Use: Cross Racing: All around, Sticky Mud Size: 700 Tyre Width: 33mm Internal Rim Width: 15-19mm TPI: 300 Bead: Aramid Casing: SuperPoly Flat Protection: PPS BAR: 2-6 PSI: 30-90 Weight: 360gTechnologies: Challenge Handmade Clinchers (HCL): Our Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tire that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tire is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tire's stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Challenge Chicane Open Cyclocross Tyre - Black - Tan - Folding Bead, Black - Tan
  • £60.99
  • RRP £67.00
  • Saving you £9

Challenge Chicane Open Cyclocross TyreDrill the straightaways with confidence knowing the Chicane will carry you through sand, dust, snow or whatever the approaching corners throw at you. The ultimate fast tyre with superior cornering traction.Open tubular differ from traditional clinchers for the construction. The Tyre is produced just like a tubular and uses the same materials and production process. Instead of being sewed with an inner tube inside, at the end of the process beads are made by folding the casing around Aramid fibers threads. For this reason an open tubular gives very similar ride feel of that of a tubular, mainly if a latex inner tube is used.Mounting an open tubular on a wheel is the same as mounting a standard clincher but with the advantage of riding a much more comfortable and performing tyre. This tyre is also designed to be super-fast rolling with maximum control on dry hard pack, wet grass or even icy riding conditions.Features: Use: Cross Racing: Dry, Grassy, Dusty or Icy Conditions Size: 700 Tyre Width: 33mm Internal Rim Width: 15-19mm TPI: 300 Bead: Aramid Casing: SuperPoly Flat protection: PPS BAR: 2-6 PSI: 30-90Technologies: Challenge Handmade Clinchers (HCL): Our Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tyre that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tyre is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tyre's stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

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