THIS MUCH WE KNOW! MXA’S GUIDE TO SHOCK LINKAGE LENGTHS

July 8, 2013
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One of the simplest and most common tuning tips is swapping out shock linkages. Going to a longer link not only moves the starting point of the shock travel higher into the rising-rate stroke, but it also lowers the rear of the bike. The combined effect is a bike that sits lower, especially when you raise the forks in sync with the lower rear end, and stays higher in its shock stroke. This is an especially good mod for riders on the cusp of having to go to the next stiffest spring rate (or for bikes that wallow under acceleration).

SIX YEARS’ WORTH OF LINK ARM LENGTHS
The link is only one part of a bell-crank-style system. On systems that utilize the same bell crank, different link lengths can be used to tune the suspension, but not on bikes with different overall ratios.


 HONDA CRF250
2009    132.0mm
2010    144.0mm
2011    144.0mm
2012    143.0mm
2013    143.0mm
2014    143.0mm

HONDA CRF450
2009    144.0mm
2010    144.0mm
2011    143.0mm
2012    143.0mm
2013    143.0mm
2014    143.0mm

KAWASAKI KX250F
2009    130.0mm
2010    131.0mm
2011    131.0mm
2012    131.0mm
2013    131.0mm
2014    131.0mm

KAWASAKI KX450F
2009    134.0mm
2010    135.0mm
2011    135.0mm
2012    135.0mm
2013    135.0mm
2014    135.0mm

KTM (ALL)
2011    142.5mm
2012    142.5mm
2013    142.5mm
2014    142.5mm

 SUZUKI RM-Z250
2009    132.5mm
2010    132.5mm
2011    132.5mm
2012    132.5mm
2013    132.5mm
2014    132.5mm

SUZUKI RM-Z450
2009    132.5mm
2010    132.5mm
2011    132.5mm
2012    132.5mm
2013    132.5mm
2014    132.5mm

YAMAHA YZ250F
2009    142.0mm
2010    142.0mm
2011    142.0mm
2012    142.0mm
2013    142.0mm
2014    142.0mm

YAMAHA YZ450F
2009    141.0mm
2010    142.0mm
2011    142.0mm
2012    142.0mm
2013    142.0mm
2014    142.0mm


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