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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
3 Front Shock Tower
Easier to tune
One pair of heavy duty replacement ball bearings for all 540 sized brushless and brushed motors with standard 1/8" shaft
- New mount & receiver box to which various manufacturer’s electric switch can be attached
OS Engines Speed R21 Euro II .21 Nitro On Road Engine OSM1DR00 ignite 3 Front Shock TowerO. 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.
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