{"product_id":"shimano-acera-br-mt420-black","title":"Shimano Acera BR-MT420 Post Mount Hydraulic Disc Brake Caliper (Black)","description":"\u003cp style=\"text-align: center; font-style: italic; font-size: 18px; border: 1px solid #ddd; background: #f7f7f7; padding: 16px;\"\u003eA hydraulic disc caliper for riders who want stronger, more consistent stopping power without upgrading their whole brake system.\u003c\/p\u003e\n\u003ch5\u003eOverview\u003c\/h5\u003e\n\u003cp\u003eThe BR-MT420 sits in Shimano's entry-level hydraulic disc lineup, built around a 4-piston caliper design that Shimano positions as a meaningful step up from 2-piston calipers in raw stopping power.\u003c\/p\u003e\n\u003cp\u003eIt's a straightforward, no-frills caliper - no lever included, just the caliper body and pads - which makes it a natural pick for anyone upgrading an existing hydraulic setup or building a bike from parts. The painted aluminium body keeps weight reasonable while the 4-piston layout spreads clamping force more evenly across the pad, which is where a lot of that extra stopping power and improved wear resistance actually comes from.\u003c\/p\u003e\n\u003cp\u003eIt makes sense as a targeted upgrade for a rider who's happy with their current shifters and levers but wants noticeably stronger, more consistent braking - rather than a full groupset swap just to fix underpowered stopping power.\u003c\/p\u003e\n\u003ch5\u003eWhy You'll Like It\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e4-piston caliper design\u003c\/strong\u003e\u003cbr\u003eMore braking power and better modulation than a 2-piston caliper, especially useful on loaded bikes or steeper terrain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eD03S resin pads included\u003c\/strong\u003e\u003cbr\u003eA quiet, easy-modulating pad compound straight out of the box, with D02S metal pads available as an upgrade if you want more bite in wet or muddy conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWide rotor compatibility\u003c\/strong\u003e\u003cbr\u003eWorks with SM-RT30, SM-RT54, SM-RT56, and SM-RT64 rotors from 140mm up to 203mm, so it fits a wide range of frame and fork setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePost mount design\u003c\/strong\u003e\u003cbr\u003eStraightforward to fit on most post-mount frames and forks without needing an adapter for a standard setup.\u003c\/p\u003e\n\u003ch5\u003eWho Is It For?\u003c\/h5\u003e\n\u003cp\u003eRiders upgrading an older or lower-spec hydraulic disc setup who want noticeably stronger braking without replacing shifters or levers. Also a solid pick for anyone building or maintaining a bike from individual parts who needs a dependable, well-priced caliper.\u003c\/p\u003e\n\u003cp\u003eIt's a practical fit for riders dealing with the steeper, less predictable braking demands of Indian traffic and terrain - loaded commutes, sudden stops in city riding, or steep sections on longer rides - where the extra stopping power of a 4-piston caliper over a 2-piston setup is genuinely noticeable.\u003c\/p\u003e\n\u003ch5\u003eGood to Know\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eThis caliper ships without a mount adapter, so check your frame or fork's native mount spacing against your chosen rotor size before fitting.\u003c\/li\u003e\n\u003cli\u003eIt comes fitted with D03S resin pads - if you later want to switch to D02S metal pads for wet-weather bite, both compounds are compatible with this caliper.\u003c\/li\u003e\n\u003cli\u003eBecause it's sold as a caliper only, it pairs well with your existing brake lever when you're upgrading just the stopping power side of your setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Post Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pistons\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Pad Compound\u003c\/strong\u003e: D03S Resin (included); D02S Metal compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Rotors\u003c\/strong\u003e: SM-RT30, SM-RT54, SM-RT56 (resin pads), SM-RT64 (resin or metal pads); 140-203mm diameter range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes\u003c\/strong\u003e: Brake Caliper (pads included, adapter and rotor sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliper Material\u003c\/strong\u003e: Painted aluminium body, steel hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eCountry of Origin: Malayasia\u003c\/li\u003e\n\u003cli\u003eImported By: Shimano South Asia Pvt Ltd., 19, (Ground Floor) Kumara Krupa Road, Bangalore - 560 001, Karnataka, India\u003c\/li\u003e\n\u003cli\u003eNet Quantity: 1N\u003c\/li\u003e\n\u003cli\u003eCustomer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com\u003c\/li\u003e\n\u003cli\u003eCommodity: Caliper Brakes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano India","offers":[{"title":"Default Title","offer_id":47544406638761,"sku":"EBRMT420MPRXL","price":4140.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/7793\/files\/101607_c9cac19c-13bc-4820-922f-aa62c97e2969.jpg?v=1789136891","url":"https:\/\/bumsonthesaddle.com\/products\/shimano-acera-br-mt420-black","provider":"BUMSONTHESADDLE","version":"1.0","type":"link"}