29"x2.25" Riddler TCS Light Fast Rolling Bicycle Tire MotoTec Demon and VIP snowmobiles

and VIP snowmobiles

The 18 grooves around the axle bore's radius mates with the axle's 18 milled splines (raised parts)

75" white wall street bicycle tire with a K123 tread from Kenda may be the perfect replacement

Lightweight fast rolling tire for commuting or touring

2926 (JohnLite)

29"x2.25" Riddler TCS Light Fast Rolling Bicycle Tire MotoTec Demon and VIP snowmobilesLarge, supported toothy side knobs and densely packed, low centered tread. The Riddler is a fast rolling tire with great cornering abilities named after WTB athlete Nathan Riddle. XC AM tire designed for use on dry to damp and hardpack to sand trail conditions. Light Lighter weight compound conforms to trail objects while still providing a happy balance between low rotational weight and reliability. FR Fast Rolling, with WTB's Dual DNA rubber compound