Gecko carbon wheels

from £830 / pair

Our lightest road disk and gravel Gecko wheelset. Built onto our own JRA Centre-Lock Straight-Pull disk hubs, weights are from 1258g. These wheels won a “best cycling components of 2018” award from

build time for this wheelset: 10 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 24 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
Please note that straight pull hubs don’t offer Boost 110/148 axle options.

rims: JRA carbon Gecko 700c. 355g 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 1258g
J-Bend centre-lock wheelset: front 616g / rear 716g / pair 1332g

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

Gecko carbon rim with symmetrical profile

Gecko carbon rims

• Toray carbon with smooth matt UD finish
• water transfer decal
• Hookless sidewalls
• 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

material & finish


rim dimensions
internal rim width



Just Riding Along


wheel size


hole count


bead hook


braking options

6-bolt disk brake, centre-lock disk brake


1274 g

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