{"product_id":"bucklos-4-piston-hydraulic-disc-brake-set-e-bike-mtb-electric-scooter","title":"BUCKLOS 4-Piston Hydraulic Disc Brake Set – E-Bike \u0026 MTB","description":"\u003ch2\u003eBUCKLOS 4-Piston Power-Off Hydraulic Disc Brake Set — E-Bike, Electric Scooter \u0026amp; MTB\u003c\/h2\u003e\n\u003cp\u003eUpgrade your ride with the \u003cstrong\u003eBUCKLOS HD-E735 4-Piston Hydraulic Disc Brake Set\u003c\/strong\u003e — engineered for e-bikes, electric scooters, and mountain bikes demanding consistent, powerful stopping force. The power-off cut feature automatically cuts motor power when the brake lever is pulled, a critical safety function for e-bikes and e-scooters. With four pistons per caliper, you get superior braking force and modulation compared to standard 2-piston systems, giving you confident control on descents, urban streets, and technical trails alike.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-Piston Caliper:\u003c\/strong\u003e Greater clamping force and more even pad wear for longer-lasting, consistent braking performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower-Off Function:\u003c\/strong\u003e Integrated motor cut-off switch engages when brake lever is squeezed — essential safety feature for e-bikes and electric scooters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtended Cable Lengths:\u003c\/strong\u003e Front hose ~1150mm \/ Rear hose ~1950mm — suitable for full-size e-bikes, cargo bikes, and electric scooters with longer frames.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e160mm Rotor Compatible:\u003c\/strong\u003e Works with standard 160mm 6-bolt disc rotors; choose from three set options (see below).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Fitment:\u003c\/strong\u003e Compatible with E-Bike, Electric Scooter, MTB, and similar cycling platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight Build:\u003c\/strong\u003e Front caliper ~530g \/ Rear caliper ~540g — minimal added weight for maximum stopping performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBUCKLOS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHD-E735\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBraking System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydraulic Disc Brake\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePistons\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Piston\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~1150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear Cable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~1950mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront ~530g \/ Rear ~540g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRotor Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e160mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLeft front, right rear\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFit For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eE-Bike \/ Electric Scooter \/ MTB\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAvailable Set Options\u003c\/h3\u003e\n\n\u003ch4\u003eRegular Set\u003c\/h4\u003e\n\u003cp\u003eIncludes the brake lever\/caliper set + \u003cstrong\u003eBasic 160mm Rotor\u003c\/strong\u003e. A solid, dependable setup for everyday riding.\u003c\/p\u003e\n\n\u003ch4\u003eUpgrade Set 1 — Floating Disc Rotor\u003c\/h4\u003e\n\u003cp\u003eIncludes the brake set + a \u003cstrong\u003eFloating 160mm Disc Rotor\u003c\/strong\u003e (6-bolt). Floating rotors reduce heat buildup and offer improved bite consistency under demanding conditions.\u003c\/p\u003e\n\n\u003ch4\u003ePerformance Set 2 — Hollow Heat Dissipation Rotor\u003c\/h4\u003e\n\u003cp\u003eIncludes the brake set + BUCKLOS \u003cstrong\u003eRT78 Ultralight Heat-Dissipation Rotor\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eModel: RT78 | Type: 6-Bolt | Size: 160mm\u003c\/li\u003e\n  \u003cli\u003eWeight: ~105g\/pc | Thickness: 1.8mm\u003c\/li\u003e\n  \u003cli\u003eHollow cutout design accelerates heat dissipation for extended downhill or high-demand braking sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Front hydraulic brake lever + caliper (with power-off cable), ~1150mm hose\u003c\/li\u003e\n  \u003cli\u003e1x Rear hydraulic brake lever + caliper (with power-off cable), ~1950mm hose\u003c\/li\u003e\n  \u003cli\u003e160mm rotor(s) — type depends on set chosen\u003c\/li\u003e\n  \u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more workshop and maintenance tools? Check out these useful items from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicon Grease Lubricant for O-Rings \u0026amp; Mechanical Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003e1PC Multi-Use Wrench Set – Great for Maintenance \u0026amp; Repair Tasks\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3pcs-silicone-sealant-scraper-set-multi-functional-caulking-nozzle-tools-for-tile-floor-joints-grout-finishing-and-renovation\"\u003e3PCS Silicone Sealant Scraper Set – Multi-Functional Tool Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this hydraulic brake set compatible with standard e-bikes and electric scooters?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The BUCKLOS HD-E735 hydraulic disc brake set is specifically designed for e-bikes, electric scooters, and MTB bicycles. The integrated power-off (motor cut) function is particularly important for e-bikes, cutting motor power automatically when the brake lever is engaged for safer stopping.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What rotor size does this brake set use?\u003c\/h4\u003e\n\u003cp\u003eA: This brake set is compatible with 160mm 6-bolt disc rotors. Depending on your chosen set (Regular, Upgrade, or Performance), either a basic, floating, or hollow heat-dissipation 160mm rotor is included.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the Regular, Upgrade, and Performance sets?\u003c\/h4\u003e\n\u003cp\u003eA: All three sets include the same 4-piston hydraulic brake levers and calipers. The difference is the included rotor: the Regular Set comes with a standard 160mm rotor, the Upgrade Set 1 includes a floating rotor for better heat management, and the Performance Set 2 includes the BUCKLOS RT78 ultralight hollow heat-dissipation rotor (1.8mm thick, ~105g) for maximum thermal performance in demanding riding conditions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are the cable hose lengths long enough for full-size e-bikes?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The front hose is approximately 1150mm and the rear hose is approximately 1950mm — these extended lengths are specifically chosen to accommodate the longer frames of e-bikes, cargo bikes, and electric scooters compared to standard MTB setups.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this hydraulic brake set compatible with standard e-bikes and electric scooters?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The BUCKLOS HD-E735 hydraulic disc brake set is specifically designed for e-bikes, electric scooters, and MTB bicycles. The integrated power-off (motor cut) function is particularly important for e-bikes, cutting motor power automatically when the brake lever is engaged for safer stopping.\"}}, {\"@type\": \"Question\", \"name\": \"What rotor size does this brake set use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This brake set is compatible with 160mm 6-bolt disc rotors. Depending on your chosen set (Regular, Upgrade, or Performance), either a basic, floating, or hollow heat-dissipation 160mm rotor is included.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the Regular, Upgrade, and Performance sets?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"All three sets include the same 4-piston hydraulic brake levers and calipers. 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The front hose is approximately 1150mm and the rear hose is approximately 1950mm — these extended lengths are specifically chosen to accommodate the longer frames of e-bikes, cargo bikes, and electric scooters compared to standard MTB setups.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"BUCKLOS 4-Piston Hydraulic Disc Brake Set – E-Bike \u0026 MTB\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/bucklos-4-piston-hydraulic-disc-brake-set-e-bike-mtb-electric-scooter\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"Upgrate SET","offer_id":67582880317539,"sku":"1005010038590747-Upgrate SET","price":323.03,"currency_code":"USD","in_stock":true},{"title":"Performance SET","offer_id":67582880350307,"sku":"1005010038590747-Performance SET","price":390.8,"currency_code":"USD","in_stock":true},{"title":"FRONT AND REAR","offer_id":67582880383075,"sku":"1005010038590747-FRONT AND REAR","price":263.92,"currency_code":"USD","in_stock":true},{"title":"FRONT","offer_id":67582880415843,"sku":"1005010038590747-FRONT","price":137.66,"currency_code":"USD","in_stock":true},{"title":"Regular Set","offer_id":67582880448611,"sku":"1005010038590747-Regular Set","price":290.73,"currency_code":"USD","in_stock":true},{"title":"REAR","offer_id":67582880481379,"sku":"1005010038590747-REAR","price":146.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S3606a70036024796966d01e6ecb26fa4i.webp?v=1790530990","url":"https:\/\/nixiehaven.com\/products\/bucklos-4-piston-hydraulic-disc-brake-set-e-bike-mtb-electric-scooter","provider":"Nixie","version":"1.0","type":"link"}