Reserve 40 GR Front Carbon Fiber Clincher Rim
The Reserve 40 GR Front Carbon Fiber Clincher Rim is a carbon fiber disc tubeless rim for custom wheel builds. Reserve designs and manufactures the rim; ProWheelBuilder is an independent custom wheel builder in Georgia, not the manufacturer. We build it into a complete wheel: choose the hub, spokes, nipples and lacing in the configurator and it ships laced, tensioned and trued by hand.
Specifications
| Wheel size | 29in |
|---|---|
| ERD | 560 (29in) |
| Inner width | 27.4 mm |
| Outer width | 36 mm |
| Depth | 40 mm |
| Drillings | 24h |
| Weight | 400g (700c/29in) |
| Material | Carbon Fiber |
| Tire type | clincher tubeless compatible |
| Brake | Disc |
| Spoke bed | Offset 3 mm |
| Nipples | External |
| Finishes | black |
Material and weight
A carbon fiber rim, listed by Reserve at 400g in 700c/29in. Rim weight is rotating weight at the outside of the wheel, so it is felt more than the same grams on the frame. A 27.4mm inner width supports wide tyres at low pressure and gives them a stable, rounded profile.
Value
Every Reserve rim we sell is built into a wheel here: we cut spokes to the measured ERD of the exact size, lace it to the hub you choose, tension and true it by hand and stand behind the build. The current per-size price is always shown live in the configurator.
How we build it
Pick the wheel size (29in), then a drilling (24h), and the configurator only offers hubs, spokes and lacing patterns that can be built with that combination. Sizes or drillings not made are struck through rather than hidden. Start from this rim in the Custom Wheel Program, or send us a rim you already own with the supply-your-own option.
Warranty
Reserve's warranty. Reserve, made by Santa Cruz Bicycles, covers its rims for the lifetime of the rim to the original owner: a rim broken while riding is replaced, and damage from a non-riding incident is covered by a low-cost crash-replacement program.
ProWheelBuilder. Our one-year wheel warranty applies to any wheel we build around this part, alongside whatever the manufacturer offers. Inside that year, broken spokes are replaced no matter how they broke, and the wheel labor is ours - truing, re-tensioning or a full rebuild. A rim or hub failure that the maker covers, we claim for you and see through; one the maker declines, we answer with an eligible replacement at 25% off current retail. Shipping both ways is yours, and components you supply yourself fall outside this cover.
Full terms are on our Policies & Warranty page.
40 GR Front Carbon Fiber Clincher Rim questions
Is ProWheelBuilder the manufacturer of the Reserve 40 GR Front Carbon Fiber Clincher Rim?
No. Reserve makes the rim. ProWheelBuilder is an independent custom wheel builder in Georgia: we buy the rim from Reserve and build it into a finished wheel to your spec.
Is it tubeless-ready?
Yes. Reserve lists the 40 GR Front Carbon Fiber Clincher Rim as clincher tubeless compatible; we tape and fit a valve when you choose the tubeless option.
Which spoke count should I choose?
It depends on your weight, terrain and the hub, not the rim alone. The configurator recommends a count from your bike type and rider weight, within the drillings this rim is made in.
How long will the wheel take?
Build time comes down to parts availability rather than bench time. The estimated ship date is shown in the configurator before you check out.
Not sure? Email info@prowheelbuilder.com (fastest) or leave a voicemail on 470-253-0929 — you will be talking to the people who build the wheels.
