O.S. Speed AD3 Crankcase
O.S. Speed .21 Engine Crankcase Fits AD3, AD2, AD1, RD1, RD2, 2101, and 2102
O.S. Speed Cover Plate
O.S. Speed .21 Cover Plate Fits AD3, AD2, AD1, RD1, RD2, 2101, and 2102
New O.S. Speed Replacement Piston, Sleeve, and Rod set
O.S. Speed Complete Piston/Sleeve/Rod Assembly. This includes piston and sleeve, but also the connecting rod, wrist pin and wrist pin clips. The rod is already pre-assembled for you, so you can simply install it in the engine and forget about the hassle of removing wrist pin clips to install a new rod! This is a replacement Piston Sleeve and Rod set for the following engines listed below. Select your engine type: Then you can order with or without Bearings. If you order with bearings it's a $15 savings. Bearing combo comes with Steel Front & Ceramic Rear bearings. Then Select EBIS Option (Break-In or no Break-In) (O.S. Speed Piston/Sleeve/&Rod set Options)
- B21AD compatible with AD3,AD2,AD1,RD1, & RD2 Edition engines. All use the same Piston, Sleeve, & Rod.
- B2101 compatible with B2102-Tessmann engine. All use the same Piston, Sleeve, & Rod.
- Spec 2 compatible with FP01, FP02, Tessmann 110%, & Blok. All use the same Piston, Sleeve, & Rod.
- Spec 3
- B2103 compatible with Protek Samurai, RM, S03, R03 All use the same Piston, Sleeve, & Rod.
- B2103 R
- B2104
O.S. Speed Engine Connecting Rod W/Retainers (Off-Road)
For the following engines:
AD3*AD2*AD1*RONDA*B2101*B2102*SPEC2*SPEC3*2103 S and R Version*2104
