At DMG Motorsports, we present the All Balls Racing Rear Master Cylinder Rebuild Kit (SKU 21-81101) — the go-to solution for restoring a leaking or spongy rear brake master cylinder on select Husqvarna and KTM mini/minicycle models. Rather than replacing an entire master cylinder assembly, this kit lets you re-seal the unit with fresh, OEM-quality internal components, saving you time and money while getting your bike back on the trail with confident, reliable rear brake feel. Engineered by All Balls Racing, a trusted name in powersports hard parts, this kit is built to meet OEM specifications and is designed as a direct, bolt-in fit for the applications listed below.

This kit is designed to fit rear brake master cylinders on Husqvarna TC 50 (2018-2019) and KTM SM 50 (2006), SX 50 (2006-2019), SX 50 Mini (2009-2019), SX 65 (2004-2008), SX 85 (2003), SX PRO JR 50 (2009), SX PRO SR 50 (2004-2005), SXS 50 (2011-2014), and XC 65 (2008). Always verify fitment against your exact year and model before ordering.

Features:

• Complete kit contains all parts needed to re-seal a leaking rear master cylinder
• Includes cup seals, copper washers, O-rings, and replacement screws where applicable
• Built to meet OEM specifications for a precise, reliable fit
• Restores like-new master cylinder performance and eliminates fluid leaks
• Direct-fit application for select Husqvarna and KTM mini/minicycle models
• A cost-effective alternative to replacing the entire master cylinder assembly
• Backed by All Balls Racing, a leading supplier of aftermarket powersports hard parts

Fitment