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Reduces sound output with minimal increase in back pressure
With frame coverage all the way back to the cross member and under the foot peg mounts
Keeps internals clean while eliminating corrosion and conditioning seals
Unique frictional profile optimizes supercharger performance
125X ('04-'15)
BBR 88cc Big Bore Kit XR/CRF50 | 411-HXR-5400 CaliperGuard Reduces sound output with minimalTechnical Information Fitment: Honda XR CRF50 (2000 Present) Convert your CRF XR50 to an 88cc screamer with this complete kit. Everything is included to upgrade the performance of you mini bike. This kit uses your stock CRF XR50 cylinder head. Aluminum BBR cylinder Special 52mm piston specially designed to work with your stock cylinder head's combustion chamber BBR special grind camshaft take full advantage of the large piston for great performance
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