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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
2014-Current CRF125F and CRF125FB (NU-4147ST)
Compression ratio: 12
Note: This kit should be installed by a professional mechanic or shop that offers valve job service as the valve seats must be cut to accept the larger valve head diameters and valves sunk deeper to allow for overlap clearances
Actual sprocket may differ slightly
OEM Shift Star - 02-09 KLX110 - 13145-1081 YX160 2014-Current CRF125F and CRF125FB (NU-4147ST)OEM Shift Star KLX110 13145 1081 This is the stronger updated version. To be used with the OEM 4up shift drum. Commonly used when swapping the L model to the standard 4up pattern to avoid the infamous klx110L mis shift.
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