MTB Tubeless Ready tyre Schwalbe Rocket Ron HS 438 27.5" 835g

The Schwalbe Rocket Ron HS 438 is a lightweight MTB Tubeless Ready tyre for 27.5" wheels, designed for cross-country riding and racetracks. Weighing approximately 835 g and with a nominal width of 7 cm, it offers a balance of low rolling resistance and reliable grip while supporting a maximum load of 120 kg and an inflation range of 17–38 psi.

Advantages

The tread is engineered to reduce rolling resistance without sacrificing traction, while sufficiently spaced lugs provide effective self-cleaning. Stable shoulder studs improve cornering control and overall handling at speed. Being Tubeless Ready, the tyre allows lower pressures for better traction and reduced pinch-flat risk when used with appropriate tubeless setups.

Suitable for

• Cross-country racing and training
• Fast trail riding on mixed hardpack and loose surfaces
• Racetrack use where speed and cornering precision are required

Key specifications

• Brand: Schwalbe
• Model: Rocket Ron HS 438
• Size: 27.5" (ETRTO 27.5")
• Width (nominal): 7 cm
• Weight: approx. 835 g
• Type: Tubeless Ready (TLR)
• Maximum load: 120 kg
• Inflation pressure: 17–38 psi
• MPN: 11600826.02
• EAN: 4026495879118

How to use

Install the tyre on a compatible 27.5" rim following the rim and tyre manufacturers' instructions. For tubeless setup, use an appropriate tubeless rim tape, valve and sealant; ensure the bead seats correctly and check for airtightness. Inflate within the specified 17–38 psi range, adjusting pressure according to rider weight, terrain and riding style. Inspect the tyre regularly for damage and correct seating before each ride.

Usage recommendations

For optimal performance, run lower pressures within the recommended range for improved traction on technical and loose sections, and higher pressures for faster rolling on hardpack. Use a quality tubeless sealant and periodic pressure checks to reduce the risk of flats. Replace the tyre when tread or sidewall damage impairs safety.