Chimera Stretch Blocks Adjustable Kawasaki Z125 Pro - Black

The Chimera Adjustable Stretch Blocks are an aftermarket wheelbase extension kit engineered specifically for the Kawasaki Z125 Pro. Machined from T-6061 aluminum, these blocks replace the stock chain adjuster blocks and reposition the rear axle further back, extending the wheelbase by an adjustable 4 to 6.5 inches (with roughly half an inch of play depending on chain tension). The result is a longer, lower visual profile that is popular in the mini bike and stunt riding communities. A built-in caliper bracket stopper ensures the rear brake caliper remains properly aligned after the extension.

Installation is a bolt-in affair using the included stainless steel hardware — no cutting, welding, or permanent modifications to the frame or swingarm are needed, which means the bike can be returned to stock if desired. The key additional requirement is a 130-link chain, as the stock chain will not be long enough to span the extended distance between the front sprocket and rear wheel. For Z125 Pro owners looking to dial in a custom stretched look while retaining the ability to adjust the degree of extension over time, the Chimera blocks provide a durable, well-fitted solution in a single kit.