{"product_id":"four-piston-hydraulic-disc-brake-set-for-mountain-8856","title":"Four Piston Hydraulic Disc Brake Set For Mountain Bikes With Aluminum Lever And Caliper Pre Bled For E-Bike And Fat Bike Left Front 850mm Right Rear 1550mm Lines Quiet Braking Upgrade","description":"\u003cdiv\u003eFour-Piston Hydraulic Disc Brake Upgrade for MTBs \u0026amp; E-Bikes\u003cbr\u003e\n✔️ Front 850mm and rear 1550mm hydraulic lines, pre-bled \u003cp\u003eThis four-piston hydraulic disc brake kit delivers strong, reliable stopping power for mountain bikes, e-bikes, fat bikes, and scooters. Pre-bled and ready to install with mineral oil, it’s built for easy upgrading from mechanical brakes.\u003c\/p\u003e \u003cp\u003e✅ 4-piston hydraulic calipers deliver high braking force\u003cbr\u003e✅ Pre-bled with mineral oil for quick install\u003cbr\u003e✅ Integrated hydraulic cylinder minimizes oil leaks\u003cbr\u003e✅ Quiet resin-metal brake pads protect rotors\u003cbr\u003e✅ Front 850mm, rear 1550mm lines fit common MTB layouts\u003cbr\u003e✅ Compatible with MTB, e-bike, fat bike, scooter and more\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 How to choose and install a hydraulic brake kit for mountain bikes and what should you check before buying?\u003c\/p\u003e\n\u003cp\u003eInstalling a hydraulic brake kit is handy when you follow these steps:\u003c\/p\u003e\n- Check compatibility with frame, rotor size and lever reach\n- Confirm line lengths (front 850mm, rear 1550mm) fit your bike layout\n- Bleed with mineral oil and avoid air in the lines\n- Test lever feel and stopping power in a safe area\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48042499473643,"sku":"VXB09YL9BVH3","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51jOH5C4p9L.jpg?v=1775246000","url":"https:\/\/vxb.com\/products\/four-piston-hydraulic-disc-brake-set-for-mountain-8856","provider":"VXB Bearings","version":"1.0","type":"link"}