Shimano Deore SL-M4100-I 10-speed Shifter w/ I-Spec EV

Item number: 77721
Deore SL-M4100-I 10-speed Shifter w/ I-Spec EV - black/10-speed
Deore SL-M4100-I 10-speed Shifter w/ I-Spec EV - black/10-speed
Deore SL-M4100-I 10-speed Shifter w/ I-Spec EV - black/10-speed
Deore SL-M4100-I 10-speed Shifter w/ I-Spec EV - black/10-speed
  • 100 day return period
  • Online since 1998
  • Trusted Shop 4.91 / 5.00

Deore shifter SL-M4100-I by Shimano - I-Spec-EV model for 10-speed

The Shimano Deore SL-M4100-I shifter for MTB or City & Touring 10-speed drivetrains has an I-Spec EV mount, so it is intended for combination with a matching brake lever. This allows the cockpit to be set up individually and ergonomically. As a Rapidfire-Plus shifter, the SL-M4100-I features a 2-Way Release function, i.e. the shifter cable can be released by pressing with the thumb or by pulling with the index finger. A cable and an OT-SP41 cable housing are included.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked E-bikes/pedelecs with pedal assistance.


Series: Deore M4100
Application: All Mountain, City & Touring
Gearing: 10-speed
Mount: I-Spec EV

Technical Information:

Type: Rapidfire Plus
Body Material: aluminium
Lever Material: Plastic / steel (main lever), synthetic resin / steel (release lever)
Cable: steel (Optislick)
Cable Housing: OT-SP41

Adjustment Options:

- cable adjust
- position adjust
- shift lever rotation adjust


MTB 10-speed:
Rear Derailleur: RD-M5120, RD-M4120, RD-M6000, RD-M7000-10, RD-T8000, RD-T6000, RD-M820, RD-M640, RD-T780, RD-T670-A, RD-T610
Cassette: CS-M4100-10, CS-HG500-10, CS-M771-10, CS-HG81-10, CS-HG50-10, CS-6700, CS-5700, CS-4600
Chain: CN-HG95, CN-HG54
Brake Lever: I-Spec EV
E-Bike: EP8 for MTB / Trekking with mechanical rear derailleur


- faster access and smooth shifting
- I-Spec EV: 14 mm adjustment range
- max. number of gears per shift: 3 (main lever, rear)
- Optislick inner cable with a minimal galvanic coating for more efficient cable routing and corrosion resistance
- painted housing
- stainless steel clamp bolts


With 2-Way-Release, the shifter can be pressed and pulled to shift to the smaller sprocket or chainring. This allows you to adjust the shifting process to your personal preferences. All newer Rapidfire Plus shifters are equipped with 2-Way-Release.

I-Spec EV
I-Spec EV describes a variant of the connection between brake lever and shifter in MTB drivetrains. This type of mounting allows the shifter to be adjusted both horizontally and vertically in relation to the brake lever, and ensures a tidy cockpit by reducing the number of clamps required. Compared to I-Spec and I-Spec II, I-Spec EV offers a much wider adjustment range. 14 mm adjustment range the longitudinal direction and up to 60° rotation allow an optimal ergonomic adjustment to your riding style, your sitting position and your anatomy.


Mount: right
Manufacturer Number: I-SLM4100IRAP1


- 1 x Shimano Deore SL-M4100-I shifter
- 1 x Shimano cable (2050 mm)
- 1 x Shimano cable housing (1880 mm)
- 3 x 6 mm sealed end caps
- 1 x long nose end cap


  • black/10-speed, in stock

Customer Reviews (1)


Customer Reviews (1)


Give us your opinion on this product.

by Torsten G.  on 10.07.2020
verified purchase

Ich habe diesen Shifter in der 10fach Version gekauft und er klickt sich sehr geschmeidig, hakt nicht und lässt sich sehr gut einstellen.

Is this review helpful?

Give us your opinion on this product.