Reserve's new 30|XC SL is the lightest mountain-bike wheelset the brand has ever made — a claimed 1,304g per pair — and it drags cross-country racing fully into the wide-rim, low-kickback era.
What Reserve actually launched
Reserve — Santa Cruz Bicycles' in-house wheel brand — has rolled out two new 29in cross-country wheelsets, the 30|XC and the range-topping 30|XC SL. Both pair a 30mm internal rim with DT Swiss hubs, and both jump to a 28-spoke build (up from 24 on the outgoing 28|XC). The SL is the headline act: at a claimed 1,304g per pair it is, per Bikerumor, the stiffest and lightest mountain-bike wheelset Reserve has ever built.
The wheels were developed alongside Cannondale Factory Racing and will see UCI World Cup duty under riders including Jolanda Neff, Charlie Aldridge, Luca Martin, Ana Santos and Cole Punchard. Both builds carry Reserve's lifetime warranty with no rider-weight limit.
By the numbers
Source: Reserve / Bikerumor
30|XC vs 30|XC SL: the two builds
How the two wheelsets compare
| 30|XC | 30|XC SL | |
|---|---|---|
| Claimed weight (per pair) | 1,515 g | 1,304 g |
| Hub | DT Swiss 350 DEG DF | DT Swiss 180 |
| Spokes | Sapim D-Light steel | Vonoa carbon (-30% vs steel) |
| Spoke count | 28 | 28 |
| Internal rim width | 30 mm | 30 mm |
| Default rotor mount | 6-bolt | Centerlock |
| Price (USD) | $1,599 (~R26 400) | $2,499 (~R41 200) |
| Price (EUR) | €1,799 (~R33 700) | €2,799 (~R52 500) |
Specs: Vital MTB / Reserve
View data table
| Grams per pair | |
|---|---|
| 30|XC SL | 1304 g |
| 30|XC (DT 350) | 1515 g |
Wide rims, light spokes, and smarter hubs
The big philosophical shift is width. XC rims have historically been narrow, so a 30mm internal channel is closer to trail-bike territory — and it lets racers run plumper rubber (Reserve quotes a 2.2–2.5in tyre range) for more cornering support and traction without the squirm. Bike framed the launch bluntly as 'The End of Skinny XC Rims?'
On the SL, the weight comes from two places: Vonoa carbon spokes (claimed 30% lighter than steel) and a high-modulus carbon layup that shaves roughly 30g per rim. Both builds also adopt DT Swiss's Degree of Freedom hub — a Deg 90 ratchet run in the 0° position that, per Reserve, reduces pedal kickback and improves suspension performance 'with no weight penalty'.
“Vonoa carbon spokes are 30% lighter than traditional steel spokes and deliver a stiff, responsive ride.”
What the early reviews say
Three outlets, three takes
Independent verdicts from across the cycling press — follow each link for the full review.
Lighter, stiffer, stronger
“Somehow, Reserve made a wheelset that is lighter, stiffer, and stronger than its previous flagship offering.”
Read the full reviewA sensible XC balance — but the SL is dear
“There is no better feeling than fanging it on a fast, light wheelset up a climb.”
Read the full reviewReserve's lightest MTB wheels yet
“The New Reserve 30|XC SL Wheels are the Stiffest & Lightest the Brand Makes”
Read the full reviewThe case for and against
- Genuinely light: 1,304g per pair makes the SL Reserve's lightest-ever MTB wheelset
- Modern 30mm internal rim suits 2.2–2.5in XC tyres for more grip and casing support
- DT Swiss Degree of Freedom hubs reduce pedal kickback with, Reserve says, no weight penalty
- 28 spokes (up from 24) for added strength and durability
- Lifetime warranty with no rider-weight limit
- Proven at the sharp end with Cannondale Factory Racing on the World Cup
- The SL is expensive at $2,499 (~R41 200) USD (≈ €2,799 (~R52 500) / AUD $4,299 (~R70 900))
- Carbon-spoke builds need the proprietary Vonoa spoke for repairs (four spares included)
- 29in only — no 27.5in option
- Premium pricing across the board, even on the 'standard' 30|XC
Tap to vote — see how readers lean
Reserve 30|XC: your questions
How much do the new Reserve 30|XC wheels cost? +
Reserve lists the 30|XC at $1,599 (~R26 400) USD and the 30|XC SL at $2,499 (~R41 200) USD (roughly €1,799 (~R33 700) / €2,799 (~R52 500), or AUD $2,499 (~R41 200) / $4,299 (~R70 900)). South African pricing depends on the local distributor — check the live price tracker above rather than converting in your head.
How much lighter is the SL than the standard 30|XC? +
About 211g per pair: a claimed 1,304g versus 1,515g. The saving comes from Vonoa carbon spokes (30% lighter than steel), the lighter DT Swiss 180 hub, and a high-modulus carbon rim layup.
What is DT Swiss's 'Degree of Freedom'? +
It's a Deg 90 hub with the ratchet set in the 0° position. Reserve says it reduces pedal kickback and improves suspension performance with no weight penalty, while still offering high engagement for snappy acceleration.
What tyres fit a 30mm internal rim? +
Reserve recommends 2.2–2.5in tyres, and reviewers note modern XC racers are increasingly running 2.35–2.5in rubber — exactly the volume this wider rim is built to support.
Are the carbon spokes reliable and repairable? +
Reserve includes four spare Vonoa carbon spokes with the DT 180 build and backs every wheelset with a lifetime warranty. The stiffer spokes are claimed to reduce wind-up under hard efforts, but a replacement needs the proprietary Vonoa spoke.
Sources & further reading
- The New Reserve 30|XC SL Wheels are the Stiffest & Lightest the Brand Makes — Bikerumor
- Reserve Wheels 30|XC Flagship Is Lighter, Stiffer, and Faster — The Radavist
- Reserve Wheels Announces New 30|XC — Vital MTB
- 30|XC product page — Reserve Wheels
- New 30|XC SL Wheels — Reserve Wheels
- First look: Reserve 30|XC and 30|XC SL Wheelsets — AMB Magazine
- The End of Skinny XC Rims? Reserve's New 30|XC Changes the Game — Bike
The 30|XC SL is a flex of what's possible — 1,304g, carbon spokes and low-kickback DT 180 hubs — but at $2,499 (~R41 200) USD it's a World Cup splurge. For most riders the standard 30|XC is the smarter buy: the same 30mm rim, the same 28-spoke strength and the same clever Degree of Freedom hub for $1,599 (~R26 400), with the grams you'd actually feel reserved for the podium chasers. Either way the message is clear — modern XC rims are wide now.
