When the tubeless seal between the tyre’s air chamber and the rim’s cavity is breached, air will pass through and pressure will build up in the inner chamber, the Pressure Release Valve Stem Nut gives the air an escape route preventing damage to your rim. When installed, air escaping from the valve stem, indicates a compromised tubeless seal. Recommended not only for all Prime tubeless wheels but for all other tubeless wheels.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Presta Tubeless Valves (Pair)Giving your tubeless tyre setup the best inflation experience possible, this pair of Presta valves allows for maximum airflow and minimum fuss as you achieve your optimum pressure. Easy to install, these valves sit flush in Presta-compatible rims and feature a Pressure Release Valve Stem Nut to keep your inflation on point and to prevent accidental rim damage. Features: Easy installation Removable valve core Pressure Release Valve Stem Nuts Accept high-volume airflow Sold as a pair Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Presta Tubeless Valves are very simple to use and sit easily in all Presta valve type rims, and thanks to the Pressure Release Valve Stem Nut, which prevents the build-up of pressure in the rim cavity, the threat of accidental rim damage during inflation is eliminated. Please note: The Pressure Release Valve Stem Nuts have been designed to allow the air to escape if it breaches the tubeless tape, if you notice air escaping through the valve, your tubeless tape has not been correctly installed.
Prime Primavera 1-1/8"-1.5" Integrated HeadsetDesigned to provide you with the ultimate in steering performance, this headset features Ti Coated Races and Grade 10 Stainless Steel balls. Often overlooked and neglected, the headset is an essential component of your bike. Upgrade your ride with the Primavera Carbon Headset.The titanium nitrite coated races in the Primavera 1-1/8"-1.5" Integrated Headset roll smoothly and won't rust, while the angular contact bearings provide stability and allow for adjustability.We wanted the headset to run smoothly and last for many miles in all conditions, so the bearings are sealed tight against the elements.The looks match the performance thanks to a Prime branded carbon top cap and cover. We didn't hold back on the crown race either - it is CNC'd from 7075 alloy, which provides an improved contact point for the headset.And, if you want to slam your stem like the pros, select our short option, which features a 2.4mm top cover.Features: Steerer Type: Tapered 1-1/8" to 1.5" Top Cap Material: Carbon Top Cover Material: Carbon Bearing Material: Titanium Race with Steel Bearing Use: Road Upper Bearing: IS41.8/28.6, 6.5mm H x 41.8mm OD x 45x45deg Lower Bearing: IS52/39.8, 7mm H x 51.8mm OD x 45x45deg Stack Height: 8.9mm (Medium option) / 2.9 mm (short option) (without Crown Race) Top Cover Height: 8.2mm (Medium option) / 2.4mm (short option) Weight: TBCBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Prime Primavera 1-1/8"-1.5" Integrated HeadsetDesigned to provide you with the ultimate in steering performance, this headset features Ti Coated Races and Grade 10 Stainless Steel balls. Often overlooked and neglected, the headset is an essential component of your bike. Upgrade your ride with the Primavera Carbon Headset.The titanium nitrite coated races in the Primavera 1-1/8"-1.5" Integrated Headset roll smoothly and won't rust, while the angular contact bearings provide stability and allow for adjustability.We wanted the headset to run smoothly and last for many miles in all conditions, so the bearings are sealed tight against the elements.The looks match the performance thanks to a Prime branded carbon top cap and cover. We didn't hold back on the crown race either - it is CNC'd from 7075 alloy, which provides an improved contact point for the headset.And, if you want to slam your stem like the pros, select our short option, which features a 2.4mm top cover.Features: Steerer Type: Tapered 1-1/8" to 1.5" Top Cap Material: Carbon Top Cover Material: Carbon Bearing Material: Titanium Race with Steel Bearing Use: Road Upper Bearing: IS41.8/28.6, 6.5mm H x 41.8mm OD x 45x45deg Lower Bearing: IS52/39.8, 7mm H x 51.8mm OD x 45x45deg Stack Height: 8.9mm (Medium option) / 2.9 mm (short option) (without Crown Race) Top Cover Height: 8.2mm (Medium option) / 2.4mm (short option) Weight: TBCBuy Prime Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The titanium nitrite coated races in the Primavera 1-1/8"-1.5" Integrated Headset roll smoothly and won’t rust, while the angular contact bearings provide stability and allow for adjustability. Prime wanted the headset to run smoothly and last for many miles in all conditions, so they chose quality sealed cartridges to protect the bearings from the elements. The looks match the performance thanks to a Prime branded carbon top cap and cover. Prime didn’t hold back on the crown race either – it is CNC'd from 7075 alloy, which provides an improved contact point for the headset. And, if you want to slam your stem like the pros, select the short option, which features a 2.4mm top cover.
Prime Primavera 28 Carbon Rim Brake WheelsetLightweight RimBenefitting from a new and improved design, this wheelset is the final result of Prime's experimentation with numerous types of resin and countless new lay up tests to deliver their best rim yet. But, that's not all, the brand has also upgraded to a higher grade of carbon, saving 40g per rim, and improving on the impact strength/weight ratio.Improved PerformanceThe Prime Primavera 28 Carbon Rim Brake Wheelset features a 28mm deep T800 UD carbon fibre rim to reduce rotational weight making them a climbing legend. The shallow rim also produces predictable handling as it reduces crosswind impact.Greater Strength To Weight RatioBuilt up using the SR1, 36T Ratchet System, CNC machined 6061 alloy hubset and DT Swiss spokes the Prime Primavera 28 Carbon Rim Brake Wheelset creates a stiffer wheel with a greater strength to weight ratio and more reactivity.Shave The SecondsIf you're looking for an upgrade to shave the seconds away, the Prime Primavera 28 Carbon Rim Brake Wheelset is the wheelset you need to tame any terrain.Features: Rim Material: T800 UD Carbon Fibre Use: Road Axle Size Compatibility: Front: 100x9mm QR; Rear: 130x10mm QR Rim Width: 20.3mm (internal); 27.5mm (external) Rim Depth: 28mm Rim Type: Clincher Hub: SR1, 36T Ratchet System, CNC machined 6061 alloy hub body Freehub: Shimano/SRAM 9/10/11 speed Hub Bearings: Front: 2x 699, Rear: 1x 17287 & 1x 6802, Freehub: 2x 6802 Spokes: Front: Aerolite, 283mm; Rear: Aerocomp, 288mm (Drive Side), Aerolite, 291mm (Disc Side) Tubeless Ready: Yes UCI Approved: Yes Brake Type: Rim Brake Rider Weight Limit: 100kg Weight: Front: 640g; Rear: 815g; Wheelset: 1455gIn The Box: x4 spare spokes and nipples Tubeless Valves QR Skewers 10 Speed Spacer Prime Carbon brake padsSpares (available separately)SR1 Front Axle Silver QRSR1D QR Front End Caps Black QR54 Tooth Star Ratchet Upgrade Kit Black One SizeSR Hub Bushing Black 12mmStar Ratchet Grease Neutral 100mlSR1 Rear Axle Silver QRSR1 Rear End Caps Black QRSR Freehub Body - Campagnolo Black 9/10/11 SpeedSR Freehub Body - Campagnolo 13 Speed Black 13 SpeedSR Freehub Body - Shimano Black 9/10/11 SpeedSR Freehub Body - XDR Black 12 SpeedPrime Crash Replacement ProgrammeAt Prime we understand that a crash or unexpected accident may occur under normal riding conditions. If in the event of a fall or accident where your Prime product sustains damage beyond repair, you can return the damaged component in exchange for a new product at 40% off the RRP.Please note that the Prime Crash Replacement Programme is only valid for the original purchaser within 2 years of purchase.Buy Prime Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.