O.S. SPEED R2106 is the factory tuned engine developed for 1/8 on-road racing competition. The new engine 9 port cylinder liner with re-designed port for more power. Also for great power feel from low end, we have adopted crankshaft from R21 Euro II and well received ceramic ball bearing from offroa..
This is O.S. ENGINE MAX-21XR-B VER.III BUGGY COMBO SET w/ TB02 EFRA2089 (T-2090SC)+MB01-75.Feature:For: Suitable For 1/8 RC NitroThe newly designed crankshaft has improved response compared to conventional products by changing the counter shape and timing.Improved response by reducing the weigh..
This is Engine mount assembly includes 3x28 mm screws with washers (2) and 3x10 screws with washers (10).Replacement part for these models:Revo®Slayer® Pro 4X4TRX® 2.5RTRX® 3.3..
Davide Ongaro, who won the IFMAR 1/8 Engine Off-Road World Championship, has signed with O.S. SPEED since 2021.This time, "O.S. SPEED B21 ONGARO EDITION", which has been modified according to his feeling, was born! Based on the latest off-road engine O.S. SPEED B2104, the crankshaft has been changed..
This is an optional O.S. Induction Silencer. This EFRA/IFMAR approved silencer was developed for .12 - .21 class on-road engines to help reduce noise levels, while at the same time having very little affect on power output.Includes:Upper and lower plastic cupsRubber base with foam elementZip tieInst..
We have developed O.S.SPEED R21 Shimo edition collaborated with Takaaki Shimo, a multiple podium winner of the IFMAR 1/8 Racing World Championship. It is a 7-port engine with a new cylinder liner, which has extra holes to reduce overheating. The cooling head and 8.5mm carburetor restrictor are anodi..
The O.S.SPEED B2104 is a long-stroke engine, bore x stroke is 16.27 x 16.80mm. It has quicker response in low range and more torque in middle range with consistent idling. A combo set is equipped with TB03 (T-2100, EFRA 2155) silencer with 80mm manifold (MB-01-80)Piston/Liner:The piston/liner is con..
This is the O.S. Turbo Speed R2104 .21 9-Port On-Raod Engine Combo with the T-2080SC II Silencer, a factory tuned engine solely developed for 1/8 racing competition. This redesigned engine boasts 9-port piston liner to improve torque in low-middle power range. It also produces enough power as design..
This is O.S. Engine MAX-21XR-B Ver.Ⅲ GT Combo Set w/ TB01 EFRA2042 & MB01-70. Feature:For: Suitable For 1/8 RC NitroThe newly designed crankshaft has improved response compared to conventional products by changing the counter shape and timing.Improved response by reducing the weight of the ..