Front Brake Calipers 51mm Twin Piston Hydraulic Cylinder Caliper For Chinese 50cc-125cc ATV Quad Pit Pro Dirt Bike Go kart Apollo 140cc z40

Summary: Upgraded braking performance with a precise fit and solid construction. The caliper delivered confident stopping power and a premium finish at a budget price. Fit and compatibility: Fit my Chinese 50cc–125cc mini bike and Apollo 140cc front end exactly as described. Mounting holes and bleed port lined up with stock hardware; no modification required. Works with DNM Hornet and Marzocchi Shiver style forks without clearance issues. Build quality and materials: Cast aluminum body with a durable finish; pistons moved smoothly and returned evenly. Machining around the pad carrier and piston bores was clean with no flash or casting defects. Paint has held up through several rides without chipping. Installation experience: Simple bolt-on install using standard tools. Caliper bracket included and bolts torqued to spec with no binding. Bedding the pads took two short sessions and then braking was consistent and progressive. Performance in use: Noticeably stronger and more controlled braking versus the OEM caliper. Twin pistons provide even pad wear and reduced lever travel. No fade after repeated runs; fluid remained stable and no leaks detected. Maintenance and longevity: Easy to service — pads swap out cleanly and bleed nipple is accessible. Seals appear robust and showed no weep after extended riding. Value and recommendation: Exceptional value for riders upgrading braking on pit bikes, quads, or go-karts. Recommended for anyone needing a reliable, drop-in 51mm twin piston caliper that performs well and looks good. Pros: Solid stopping power; precise fit; clean finish; easy install; good price. Cons: Pads may be basic; consider upgrading to higher-friction compounds for aggressive riding. Overall verdict: A dependable, well-made front caliper that upgrades braking performance without breaking the bank.

This product was a great solution for adding rear braking to my modified Razor MX650 e-scooter. While some minor modifications were necessary, specifically shortening the standoffs for proper mounting, which is quite common when dealing with custom Razor builds, the overall performance has been excellent. After a couple of initial adjustments, they function flawlessly and provide the reliable stopping power I needed.

Only bc I have to put a star, trash , second pair of brakes that don’t work, everything is tighten, it pulled a lot of air even with the screw close , I repeat everything is tigh and they won’t allow me to download a vid to show how bad it’s pulling air out

Still waiting to run it on the bike, but the parts look solid, just beware that it doesn’t come with any other hardware like screws bolts or anything like that. The paint is nice too. It matches the bike perfectly.

This caliper works well, can lockup when I need it to and also vary input to stop smoothly as well. No leaks, and proper performance. Overall disappointed about the color, was attempting to match another caliper already on the bike and it came a completely different shade like almost a light bronze instead of the gold the photo was. Oh well, it’ll ride anyway.

Perfect fit for 2017 hawk 250cc carbureted. Fits the front perfectly.

I had a brake caliper similar to this one from another make that seized up on my electric Razor dirt bike. Ordered this one b/c it is similar but I enjoy the gold more than the silver color I previously had. Installed it and got the brake working in no time.

Perfect for my build

Works well. Excellent pad retention system