Schwalbe Thunder Burt#

Fast-rolling XC/trail tire running on the Canyon Grizl CF 8 Di2, replacing the Schwalbe G-One RX. 29×2.25 (ETRTO 57-622) — shares the 622 mm bead diameter with 700c wheels. The Super Ground EVO casing balances low weight with meaningful puncture protection; ADDIX Speed is Schwalbe’s fastest-rolling MTB compound.
Key Specifications#
| Attribute | Spec |
|---|---|
| Size | 29×2.25 (ETRTO 57-622) |
| Compound | ADDIX Speed |
| Casing | Super Ground EVO |
| Bead | Folding (EVO) |
| Standard | Tubeless Easy (TLE) |
| Weight | ~625 g |
Compound & Casing#
ADDIX Speed is Schwalbe’s fastest MTB compound — optimised for hard pack, gravel, and XC race conditions. Prioritizes low rolling resistance over maximum grip; the complement to its fast tread pattern.
Super Ground EVO sits in the middle of Schwalbe’s MTB casing range:
| Casing | Protection | Weight |
|---|---|---|
| Super Race EVO | Minimal | Lightest |
| Super Ground EVO | Moderate (Kevlar belt) | Light |
| Snakeskin EVO | High (sidewall + tread) | Medium |
| Evolution | High | Medium-heavy |
The Kevlar reinforcement in Super Ground runs under the tread only — no sidewall protection. Adequate for gravel and XC; not suited for technical rocky enduro terrain.
Tread Design#
Semi-slick XC pattern: low-profile ramped centre knobs for fast rolling when upright, transitioning to taller shoulder knobs for cornering traction. Suited to hard-pack, gravel, and light trail — less grip than a full-knob MTB tire in mud or loose conditions.
Tubeless Setup (TLE)#
TLE (Tubeless Easy) uses a shaped bead profile that self-seals more reliably than older TLR designs and requires less force to seat.
Recommended pressures on the Canyon GR 30 CF (27 mm internal width):
| Rider weight | Front | Rear |
|---|---|---|
| ~80 kg | 26–30 PSI | 28–32 PSI |
Running tubeless with 3–4 oz sealant. Lower pressures than the G-One RX due to the larger volume (57 mm vs 45 mm).
vs. Schwalbe G-One RX (Previous)#
| Thunder Burt | G-One RX | |
|---|---|---|
| Size | 29×2.25 (57mm) | 700×45 (45mm) |
| Compound | ADDIX Speed | ADDIX Race |
| Casing | Super Ground EVO | V-Guard |
| Standard | TLE | TLR |
| Character | XC speed, more volume | Gravel race |