<!--ProdInc[170074101]/Mall:[rei_US]--> Combines the BR-MT420 caliper with the BL-M4100 lever BR-MT420 4-piston caliper instills greater downhill confidence and control; compared to 2 pistons, the 4-piston caliper delivers greater braking power and wear resistance BL-M4100 lever offers quicker brake engagement with a shorter free stroke The high-performance lever features an additional contact point for a stiffer brake lever; it is rider tunable and designed for an action-optimized cockpit Lever includes a Shimano I-SPEC EV clamp band J-Kit allows for simple hose connection Includes resin brake padsImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Mountain Biking</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Brake Mount</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Post Mount</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Number of Pistons</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>4 Pistons</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Brake Position</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Rear: <a href=''https://www.rei.com/product/230477/shimano-br-mt420deore-bl-m4100-hydraulic-disc-brake-and-lever-set'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170074101&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>
<!--ProdInc[170074101]/Mall:[rei_US]--> Combines the BR-MT420 caliper with the BL-M4100 lever BR-MT420 4-piston caliper instills greater downhill confidence and control; compared to 2 pistons, the 4-piston caliper delivers greater braking power and wear resistance BL-M4100 lever offers quicker brake engagement with a shorter free stroke The high-performance lever features an additional contact point for a stiffer brake lever; it is rider tunable and designed for an action-optimized cockpit Lever includes a Shimano I-SPEC EV clamp band J-Kit allows for simple hose connection Includes resin brake padsImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Mountain Biking</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Brake Mount</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Post Mount</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Number of Pistons</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>4 Pistons</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Brake Position</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Rear: <a href=''https://www.rei.com/product/230477/shimano-br-mt420deore-bl-m4100-hydraulic-disc-brake-and-lever-set'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170074101&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>