Gecko carbon wheels – asymmetric rims 2021 model

£830.00 £747.00

Last remaining set of Gecko rims with an internal width of 21mm in 24 hole. Build with your choice of hub, spokes and nipples.

Original version of our light weight road disk and gravel Gecko wheelset.

build time for this wheelset: 5 days
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Where grip and light weight are your main priorities the Gecko carbon is the road-disk, gravel or cyclocross 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 tubeless ready – supplied with tubeless tape fitted, valves available separately. The rims have a hookless bead for strength which means tyres should be inflated to a maximum pressure of 80psi. The rims have a matt UD finish with grey transfer Gecko decals, and no braking surface.

The wheels are finished with tubeless rim tape but valves are extra. A crash replacement scheme applies to all JRA carbon wheelsets.

hubs: jra hubs 28 hole – choose from J-bend or Straight-pull, centre-lock or 6-bolt disk mount.
freehub: Shimano road 11spd (with spacer for 10sp), Campagnolo or Sram XD option.
front axle: QR, 9mm, 12mm or 15mm
rear axle: QR, 12x135mm or 12x142mm

rims: JRA carbon Gecko 700c, strong version in 28-hole drilling. 390g rim weight, 27mm external, 23mm depth and 21mm internal width.

spokes: Sapim CX-Ray bladed – black

weights:  Weighed with 12mm front, 12x142mm rear axles; other end caps and small variations may add up to 20g per wheel. Weighed with rim tape:

Straight-pull centre-lock wheelset: front 574g / rear 684g / pair 1390g

decals: rims have grey transfer decals. Hubs feature a laser-etched logo.

Gecko carbon rims

• Toray carbon with smooth matt UD finish
• water transfer decal
• Hookless sidewalls
• Asymmetric drilled rim
• suits tyres 25c or larger
• maximum tyre pressure 80psi
• weight for 700c rim: 355g (+/-15g)

Gecko Carbon awarded Best Cycling Components 2018

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.

Overall rating: 9/10

Sept 2018
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Additional information

rim material & finish


rim data
internal rim width


wheel size


bead hook


hole count



Just Riding Along


hub features
braking options

6-bolt disk brake, centre-lock disk brake

riding type



1274 g

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