?♂️ What it is
A 29” cross-country / marathon MTB tyre designed mainly for:
- speed
- efficiency
- long-distance riding
- rear-wheel use (most common)
???? It’s built for riders who care more about rolling fast than maximum grip.
⚙️ Key specs explained simply
Size: 29 × 2.25 (ETRTO 57-622)
- Standard modern XC MTB size
- 29” wheel = rolls over obstacles easier
- 2.25” width = balance between speed and comfort
ADDIX compound
- Schwalbe’s performance rubber mix
- Balanced:
- decent grip
- good durability
- fast rolling
???? Not race-only, not downhill—middle ground XC compound
???? 67 TPI carcass
- Medium-density casing
- Strong enough for trail use
- Not ultra-light race casing, but more durable
???? TwinSkin + Tubeless Ready
- Sidewall reinforcement → better puncture resistance
- Can run tubeless
- lower pressure
- better comfort
- fewer flats
⚡ Pressure range (1.8–3.7 bar)
- Lower pressure → more grip
- Higher pressure → faster rolling
???? Most riders settle in the middle depending on terrain
????♂️ Intended use: XC + Marathon
This tells you everything:
- long rides
- endurance racing
- fast trail riding
- mixed terrain efficiency
Very suited to long XC routes around Cape Town where you get:
- gravel climbs
- hardpack descents
- mixed rocky sections
⚖️ Load capacity: 120 kg
- Includes rider + bike + gear
- More than enough for most MTB setups
⚡ E-bike compatibility (up to 25 km/h)
- Safe for light e-bikes (not high-speed ones)
- Reinforced for slightly higher torque use
????♂️ How it feels on the trail
Compared to more aggressive tyres:
- ???? Fast rolling (big strength)
- ⬆️ Efficient climbing
- ???? Predictable straight-line grip
- ⚠️ Less aggressive corner bite than trail tyres
???? Where it fits in tyre systems
This tyre is typically used as:
- Rear tyre in XC setups
- Often paired with:
- Rocket Ron (front grip setup)
- Racing Ray (front control setup)
???? Pairing idea:
- front = control
- rear = speed
❌ Not ideal for
- enduro / downhill riding
- very loose or muddy terrain
- aggressive technical trails
???? Bottom line
The Racing Ralph 29×2.25 Performance TwinSkin is a fast XC marathon rear tyre:
- prioritises speed and efficiency
- very good for long-distance riding
- best paired with a grippier front tyre
