O.S. Speed 21XZ-B Spec. II Ty 110% Engine
Coming in late September is the O.S. Speed 21XZ-B Spec. II Ty Tessmann 110% Nitro Engine. This particular edition of the 21XZ-B has been tweaked by Ty Tessmann himself for optimal performance and is a limited edition unit. If you are wanting to bolt serious power into your 1/8 buggy, this engine is for you. * Long stroke design * 7 mm [...]