The O.S. Speed 21XZ-B Spec II "Ty 110%" .21 Engine was developed in collaboration with renowned factory driver Ty Tessmann. The Speed 21XZ-B Spec. II Ty 110% features improvements that paved the way for Ty to take first place in the Nitro Truggy division at the ROAR Fuel Off-Road National Championships you can be confident that it makes all the power you need! The Speed 21XZ-B Spec. II Ty 110% is being produced in limited quantities, so get yours before they are gone!
7mm venturi insert that boosts power while reducing fuel consumption.
4mm lower cooling head lowers overall center of gravity for improved handling.
This product was added to our catalog on October 6, 2017
Thursday, Dec 27 2018 (3 months ago)
O.S. Speed 21XZ-B Spec II "Ty 110%" .21 Engine (Turbo Plug)
The truggy engine to have, hands down. Does everything you'd ever want a truggy engine to do. A bit much in buggy though.