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OS SPEED R21 GT COMBO
OS1CC01
OS SPEED R21 GT COMBO
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OS SPEED R21 GT is an all-new 5-port engine.
It features a newly developed piston and 5-port cylinder, crankshaft, crankcase, Specially made to fit on-road GT track.
The OS SPEED R21 GT has a 7mm carburetor restrictor.
Tech specifications:
With tuned pipe T2060SC and 70mm manifold
RC Handsfree 2 unit Ultralite HD
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1UP Racing LowPro Bullet Plug Grips w/5mm...
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OS SPEED R21 GT
326,45 €
Underhead shims OS 21XZ(0.1/0.2)
2,00 €