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Motorcycle replacement part designed to restore confident lever feel and dependable front braking for a range of older ATVs and bikes. Riders restoring or maintaining classic models will value a clear fitment list and a robust aluminium construction. Is the Keenso Motorcycle Master Cylinder the right match for your Yamaha-style machine?
⚡ At a Glance
- • Braking Performance: Consistent lever feel with reduced fluid bypass thanks to redesigned pistons and return springs
- • Best for: Owners of older Banshee, Big Bear, Grizzly and similar models listed in the fitment
- • Not ideal for: Machines with handlebar diameters other than 7/8" (about 22mm) or different mounting requirements
Front-right master cylinder, 14mm bore with 10mm thread and 7/8" (about 22mm) handlebar clamp. Cast from top grade aluminium alloy with new pistons and return springs to help prevent fluid bypass.
Improved braking control – thanks to 14mm bore and new piston assembly
A 14mm bore coupled with freshly cast pistons and return springs produces stable hydraulic pressure and limits fluid bypass during lever travel. The revised internal components restore predictable modulation under repeated use.
More consistent stopping and easier modulation at the lever, which helps when navigating trails or making precise stops.
Long-lasting durability – with top grade aluminium alloy construction
Premium aluminium alloy resists corrosion and maintains structural integrity under vibration and outdoor exposure. The casting process used for the master cylinder housing improves rigidity around mounting points.
Reduced likelihood of corrosion or deformation means fewer replacements and sustained braking performance over time.
Straightforward compatibility – with a clear fitment list and standard handlebar clamp
Handlebar clamp measures 7/8" (about 22mm) and thread size is 10mm, with fitment confirmed for many Banshee, Big Bear, Grizzly and related models. Front-right orientation suits common OEM layouts.
Quick identification of fitment for older machines avoids guesswork and simplifies installation for maintenance or restorations.
✨ The 4 Key Reasons for Keenso Motorcycle Master Cylinder
- Wide vehicle fitment – Improves chances of compatibility with many classic ATV variants
- Redesigned pistons and return springs – Restores more consistent hydraulic pressure under load
- Aluminium alloy housing – Resists corrosion and maintains structural stiffness over time
- Pre-shipment testing and returns accepted – Ensures functionality and gives recourse if fitment or quality issues arise
📋 Technical Details at a Glance
- Category: Motorcycle master cylinder
- Brand: Keenso
- Compatible Models: Banshee 350, Bear Tracker 250, Big Bear 250/350/400, Blaster 200, Breeze 125, Grizzly 300/350/400/450 and similar models listed in fitment
- Handlebar Diameter: 7/8" (about 22mm)
- Position: Front Right
❓ Frequently Asked Questions
Q: Which models will this master cylinder fit?
A: Fitment lists include Banshee 350 (1987-2006), Bear Tracker 250 (1999-2004), Big Bear 250 (2007-2009), Big Bear 350 (1987-1999), Big Bear 400 (2000-2012), Blaster 200 (1988-2006), Breeze 125 (1990-2004), Grizzly 300 (2012-2014), Grizzly 350 (2007-2014), Grizzly 400 (2007-2008) and Grizzly 450 (2012-2014).
Q: What handlebar diameter and bore size are required?
A: Handlebar clamp measures 7/8" (about 22mm) and bore size is 14mm, with a 10mm thread for mounting.
Q: What if the part does not meet expectations?
A: Products are tested before shipping for stability and durability, and returns, replacements or refunds are accepted if there is dissatisfaction.
🏆 Our Verdict
Suitable for owners of older Banshee, Big Bear and Grizzly machines who need a replacement front-right master cylinder. The combination of a 14mm bore, new internal components and aluminium construction aims to restore reliable lever feel and reduce fluid bypass. Clear fitment and pre-shipment testing support long-term value and easier maintenance.
