Reserve 63 TA Rear Carbon Fiber Clincher Rim
The Reserve 63|TA is a deep rear rim in Reserve's road range, built for riders who want real aero gains at the back of the bike where crosswinds matter less. TA stands for Turbulent Aero, Reserve's approach to road rim shapes: a wide, rounded profile that stays stable and fast with a 28 to 32mm tire even at this depth. The 63 TA is tubeless, disc only, and carries the Reserve lifetime warranty.
This page covers the Reserve 63 TA Rear Carbon Fiber Clincher Rim. Reserve pairs a deep rear with a shallower front so the wheelset is fast without being a handful in the wind; we build the pair as a set or singly. The 63 TA comes from us only as a finished wheel: pick the hub, spokes and nipples, and we lace, tension and true it by hand in Georgia before it ships.
Design and construction
A 63mm rear is where aero stops being marginal. Because it sits behind the rider and the frame, a deep rear buys speed without the handling cost a deep front carries, which is why Reserve pairs depths rather than selling matched sets.
Reserve designs and tests in Santa Cruz, California, and warrants its rims for life including crash replacement, which is the clearest statement a rim maker can make about what it expects the rim to survive.
How it rides
A 63 TA rear wheel is fast and stiff. On a flat, fast road the depth is worth real time, and because it is on the rear it does not upset the steering in a gust the way a deep front can. With a 28mm tubeless tire the wide profile keeps it comfortable, which is not something older deep rims could claim.
For climbing the 37 TA is lighter; for the fastest possible time-trial setup the 88 TA is deeper still. For a road racing rear wheel, the 63 TA is the Reserve rim we recommend.
Specifications
| Wheel size | 700c |
|---|---|
| ERD | 515 (29in) |
| Inner width | 24 mm |
| Depth | 63 mm |
| Drillings | 24h |
| Weight | 520g (700c/29in) |
| Material | Carbon Fiber |
| Tire type | clincher tubeless compatible |
| Brake | Disc |
| Spoke bed | Offset 1.8 mm |
| Nipples | External |
| Finishes | black |
About this listing
Version notes. 700c, 24h, about 520g, 24mm inside, 63mm deep, disc. The other sizes and brake versions of the 63 TA have their own listings; this page is for this one.
The disc version of the 63 TA has no brake track, so the sidewall is a plain extrusion that saves a little weight and never wears; it is the one to choose for any disc-brake frame. The rim-brake version, listed separately, has a machined sidewall.
Sizes, fit and compatibility
The Reserve 63 TA Rear Carbon Fiber Clincher Rim comes in the drillings listed on this page. It is a disc-brake road rim. We build the 63 TA on DT Swiss 240 and 180, Industry Nine 1/1, White Industries CLD and Chris King R45 hubs, usually with Sapim CX-Ray or CX-Sprint spokes or DT Aerolite, and brass or alloy nipples.
Tire range on the 63 TA is 25 to 32mm with tubeless tires. Pick your bike type and weight in the configurator and it recommends a spoke count and lacing pattern.
Build it into a wheel
This rim is live in our Custom Wheel Program for gravel and road disc and track and road single-speed builds. Start a build with the Reserve 63 Ta Rear Carbon Fiber Clincher Rim and the configurator opens with this exact rim pinned at the top of the Reserve list — you choose the rest of the parts and it validates every combination as you go.
Spoke head is decided by the hub, not the rim: this rim builds equally well with J-bend or straight-pull spokes, and the configurator only offers the spokes that match the hub you pick.
Testing, standards and warranty at Reserve
Reserve Wheels, Santa Cruz Bicycles' wheel brand, designs and tests its rims in Santa Cruz, California. Reserve states its rim shapes were developed "with information from testing in our carbon lab" and that "each wheel goes through a thorough human and machine-aided inspection before it gets put in the box." Press coverage (NSMB, 2017) described the in-house impact test as one side of the rim landing on a square-edged rock from over 3 feet with a tire at 25 psi, unlike the UCI test that strikes both rim walls with a flat pad and no tire. Reserve publishes no joule or fatigue-cycle figures and does not state where the rims are molded.
Reserve's tech document assigns each rim an ASTM use classification: Condition 1 for road rims, 2 for gravel, 3 for the 28|XC and 30|XC, 4 for the 30|SL and carbon 30|HD, and 5 for the aluminum 30|HD, 30|DH and 31|DH. Maximum pressures are 100 psi (6.9 bar) road, 80 psi (5.5 bar) gravel and 50 psi (3.4 bar) mountain, or the tire's limit if lower; spoke tension 100-120 kgf. Road rims are semi-hooked. Reserve states its wheels "do not have rider weight limits"; the 30|HD and 30|DH are e-bike approved.
Reserve's videos
Certifications
- ASTM use classification — Dealer tech doc (7-10-26) lists ASTM Condition 1 (road), 2 (gravel), 3 (28|XC, 30|XC), 4 (30|SL, 30|HD carbon), 5 (30|HD AL, 30|DH, 31|DH) (source)
- E-bike approved — 30|HD and 30|DH product pages state E-Bike Approved: Yes (source)
- Lifetime warranty — Original owner, lifetime of the rim, registration required (Safety Instructions rev 12.19.2025) (source)
Sources on Reserve's site:
- Frequently Asked Questions – Reserve Wheels
- Our Promise To You – Reserve Wheels
- Reserve Engineering – Reserve Wheels
- Technical Documents – Reserve Wheels
- Reserve Wheels Safety Instructions (PDF, Dec 2025)
The figures, certificates and media above are Reserve's own. ProWheelBuilder does not run these tests; our part is the wheel we build on the rim.
Building it at ProWheelBuilder
Reserve makes the 63 TA; ProWheelBuilder is an independent wheel builder in Georgia, not the manufacturer. We measure the rim before we cut a spoke, bring the wheel up in three or four rounds with a gauge, stress-relieve it between rounds and true it last, then tape it and fit a valve if you want it tubeless.
Only compatible hubs and spokes appear in the configurator, impossible combinations are struck through rather than hidden, and the price is live.
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. If we lace this into a wheel for you, that wheel also carries ProWheelBuilder's own one-year warranty, which covers broken spokes regardless of cause and all wheel-related labor, including truing and rebuilding, for a year from purchase. Where a rim or hub is covered by its maker, we make the manufacturer's claim for you and coordinate it; where it is not, we offer an eligible replacement rim or hub at 25% off current retail. Shipping to and from us is the customer's. This cover does not extend to wheels built from components you supply yourself.
Full terms are on our Policies & Warranty page.
63 TA Rear Carbon Fiber Clincher Rim questions
What tire width suits this rim?
24mm inside is the all-road and gravel width. Think 32 to 45mm tires: wide enough to support a gravel casing properly so it holds its shape at low pressure, narrow enough that a 30mm road tire still sits right if you swap wheels between bikes.
Which spokes and nipples suit the 63 TA?
For most riders a double-butted spoke such as Sapim Race or DT Competition with brass nipples; lighter riders can go to Sapim Laser or CX-Ray. The configurator recommends a gauge and count for the 63 TA from your bike type and weight.
What does TA mean?
Turbulent Aero, Reserve's road rim design that keeps a wide, rounded profile fast and stable with modern 28 to 32mm tires.
Why is the front 34mm and the rear 37mm?
A shallower front is lighter and calmer in crosswinds; a slightly deeper rear adds stiffness where the drivetrain loads it. Reserve pairs them deliberately, and we build them as a set.
Is the 34 TA tubeless?
Yes. It is tubeless-ready; we tape and fit a valve on request.
Does the lifetime warranty apply to a rim bought here?
Yes. Reserve's lifetime warranty covers the carbon rim regardless of who built the wheel; keep your order confirmation.
Is it tubeless-ready?
Yes. Reserve lists the 63 TA Rear Carbon Fiber Clincher Rim as clincher tubeless compatible; we tape and fit a valve when you choose the tubeless option.
Not sure? Text or leave a voicemail on 470-253-0929 or email info@prowheelbuilder.com — you will be talking to the people who build the wheels.
