Yoshimura Axle Adjuster Blocks

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Yoshimura Axle Adjuster Blocks make swapping rear wheels easier. By replacing your bike’s OEM adjuster blocks, you’ll find adjusting the chain to proper tension after a wheel change to be much easier than before. That’s because mass-produced adjuster blocks aren’t made with the same CNC-precision that these 6061 T6 aluminum pieces are. OEM blocks have notoriously loose tolerances and consequently allow the rear axle to move ever-so-slightly in the blocks while you torque the axle nut to spec. The end result is an improperly tightened chain, sometimes even with the old screwdriver/chain tensioning trick. These blocks help reduce chain slack frustration when swapping wheels and eliminate some unsprung weight too! This is the same kind of kit used on Yoshimura Suzuki’s AMA Superbikes for the reasons we just mentioned.

Available for 2009 and up Kawasaki ZX6R

$74.95 with free shipping anywhere in the lower 48 states.

Call TJ at 866.931.6644 ext 817 to get these chain adjuster blocks shipped to you fast. You can also email us, send those to FORUM at RIDERSDISCOUNT dot COM with YOSH BLOCKS in the subject line and please specify the model and year of your bike for accurate availability.

Sold as a pair.


Precision CNC-machined adjuster blocks are anodized in Yoshimura’s trademark Magnasonian finish and then laser-etched with the Yoshimura logo.


Reversible design permits a wider range of wheelbase length adjustment.