Shimano saint m820 disc brake caliperthis disc brake caliper from shimano features advanced shimano ice technology which offers exceptional heat reduction for improved performance on the trail'. '.strtoupper('i')n addition to finned brake pads, self insulating ceramic pistons, new m820 disc brake systems will also see the introduction of a 30mm aluminium banjo fitting'. '.strtoupper('a') new, longer 30mm banjo fitting extending from the caliper further reduces heat at a critical location where oil transitions from hose to caliper'. '.strtoupper('s')aint shares the excellent ergonomics and system stiffness found on zee brake systems and is also ispec compatible.featuresuse mountain bike mtb, commuter, touringbrake type hydraulic disc brakebrake fluid compatibility mineral oil brake fluid is non corrosive and less hazardousbrake mount shim less mounting system allows for quick installationbrake pad compatibility h01a resin h03c metalice technologies heat managementhigh power 4 ceramic piston caliperopposed dual diameter 4 piston design for maximum power, control and modulationhigh oil volume caliper improves oil flow for optimum reliability and improved lever feelexcellent piston retraction gives great pad to rotor clearanceeasy and clean bleeding thanks to one way bleeding calipercomes with sintered padsweight 306g resin pad with radiator finpart no br m820a 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products.buy shimano components from chain reaction cycles, the world's largest online bike store.