Where grip and light weight are your main priorities the Gecko carbon is the road-disk or gravel wheelset for you. With an internal width of 21mm the only limit is your frame clearance. We recommend a minimum tyre width of 25c on these rims and a maximum pressure of 80psi.
Hubs are 6 pawl, 48 point engagement hubs with premium stainless bearings.
Built onto our carbon Gecko rims in 700c. Rims are asymmetric for maximum strength and stiffness at very low weights, and are tubeless ready – supplied with tubeless tape fitted, valves available separately. The rims have a matt UD finish and no braking surface. We recommend minimum 25c tyres, which in the case of Schwalbe Pro Ones will measure up at 28mm wide on these 21mm internal rims.
The wheels are finished with tubeless rim tape but valves are extra. A crash replacement scheme applies to all JRA carbon wheelsets.
hubs: jra centre-lock hubs 24 hole
freehub: Shimano road 11spd (with spacer for 10sp), Campagnolo or Sram XD option.
axles: QR, 9mm, 12mm, 15mm
axle: QR, 12x135mm or 12x142mm
request any of our JRA 6-bolt hubs for no extra cost, these offer a wider range of options such as a 10×135 rear and Boost hub shells as well as an option to match a Son Dynamo 15mm hub which is only available in a 6-bolt.
rims: JRA carbon Gecko 700c. 364g rim weight, 27mm external, 23mm depth and 21mm internal width.
spokes: Sapim CX-Ray – black
weights: Weighed with 15mm front, 12x142mm rear axles; other end caps and small variations may add up to 20g per wheel. Weighed without rim tape which adds about 10g per wheel:
Straight-pull centre-lock wheelset: front 616g / rear 716g / pair 1332g
J-Bend centre-lock wheelset: front 575g / rear 699g / pair 1274g
Verdict: Brilliant lightweight wheels that’ll take plenty of abuse from gravel tracks or rough roads
Overall score: These are a very good set of wheels from JRA, striking just the right balance between lightness for performance and strength for fast gravel riding or on the road. The build quality and finish represent decent value for money too.
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