OS Engines Speed R21 Euro II .21 Nitro On Road Engine Combo With Pipe1DR01 4WD TT-075-K Compact Hard Case Parts

TT-075-K Compact Hard Case Parts Bag ( M ) 25*15*8cm

Flat Head Screwdiver 3ea

attack angle and multiple radius corners to give 2wd racers a smooth new option

100 mA or less

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OS Engines Speed R21 Euro II .21 Nitro On Road Engine Combo With Pipe1DR01 4WD TT-075-K Compact Hard Case PartsO. S. Speed have introduced their updated R21 Euro 1 8th onroad engine with the release of the Euro II. Based on their successful Euro motor released three years ago, the engine sports a host of updates starting with the new crankshaft. To obtain more power the balance of the crankshaft was updated and now sports 3 tungsten counter weights, giving an improvement in the mid range. Another effect of this change is the return to idle has been improved.