Rear Derailleur Shifter Lever 12v 2V 1x12 Speed Compatible With MTB Mountain Bike For Part Number M8100 M8120 SGS RD(M8100 Group)

M8100 M8120 SGS Rear Derailleur 12v 2V Shifter Lever MTB Mountain Bike RD 1x12 Speed Bicycle PartsThe M8100 and M8120 components offer performance for mountain biking applications.This product listing includes multiple configuration options for shifters and rear derailleurs compatible with 12-speed drivetrains.Option 1: SL-M8100 2S Left 2 Speed Shifter Lever for 2x12 front derailleur systems Option 2: SL-M8100 12S Right 12 Speed Shifter Lever for 12-speed cassettes Option 3: RD-M8100-SGS Rear Derailleur designed for 1x12-speed setups with maximum cassette capacity of 51T Option 4: RD-M8120-SGS Rear Derailleur compatible with 2x12-speed systems and maximum cassette capacity of 45T Option 5: M8100 Group set combining the right 12-speed shifter lever with RD-M8100-SGS rear derailleur Option 6: M8120 Group set pairing the right 12-speed shifter lever with RD-M8120-SGS rear derailleur The SL-M8100-L left shifter features RAPIDFIRE PLUS MONO technology with 2-way release, allowing shifts in both directions using a single lever.It provides instantaneous push and pull actuation, with improved lever access compared to previous models.The clamp band mount is compatible with I-SPEC EV integration, offering adjustable positioning.Average weight is approximately 78 grams per unit.The SL-M8100-R right shifter supports 12-speed rear derailleurs and uses RAPIDFIRE PLUS actuation with multi-release and instant release functions.It allows up to four consecutive downshifts and features sealed bearings for smooth.The design includes an adjustable reach lever and uses OPTISLICK inner cables with stainless housing compatibility.Recommended outer casing is OT-SP41.Average weight is approximately 117 grams per unit.The RD-M8100-SGS rear derailleur is built for 1x12-speed drivetrains, supporting cassettes up to 51T.It features RD+ spring technology, a low-profile construction, and a bumper on the pulley cage to reduce noise and vibration.Total capacity is 41T with a maximum front chainring difference of 0T.Equipped with 13T sealed-bearing pulleys and fluorine-coated link bushings, it consistent performance across rough terrain.The RD-M8120-SGS rear derailleur is designed for 2x12-speed systems, supporting a maximum 45T cassette.It also incorporates RD+ spring technology and a pulley cage bumper for quieter.Total capacity is 45T with a maximum front chainring difference of 10T.Like the M8100 model, it uses 13T sealed-bearing pulleys and hollow axle construction for reduced weight and increased durability.Both derailleurs use direct attachment mounting and are compatible with HG 12-speed chains.They feature HYPERGLIDE+ technology for smoother shifting under load and improved chain retention.Bump Stopper technology helps prevent damage during impacts by limiting over-extension of the derailleur arm.

• Model compatibility RD M8100 M8120 SGS 12-speed rear derailleur designed for integration with drivetrains
• Wide range gearing supports 1x12 speed mountain bike setups with a long cage SGS design for extended cassette coverage
• MTB component built for rugged off-road conditions shifting performance on technical trails
• Includes 2V shifter lever for precise control and smooth gear transitions across varied terrain
• Optimized for use with 12v systems delivering consistent chain management and improved drivetrain efficiency