About Minoura MagRiser Double Grooved Riser Block, 400-3231-00
Double Grooved Riser Block
Lift up front wheel to level the bike to get natural riding on training
Double grooved design; Center groove is for narrow road tire, Outer groove is for wide MTB tire
Made if blown plastic to minimize weight
- Bulk packing for OEM, and hanging tag for after market.
Founded 1n 1933 Japanese manufacturer of outstanding cycling trainers, rollers and accessories.High End Solutions for Every Cycling Need.