Shimano SLX FC-M7120-1 Crankset 175mm (1x12, Boost)
SKU code: SHM-IFCM71201EXXT
In Stock
Get reliable, efficient power transfer on every trail climb and sprint with the Shimano SLX FC-M7120-1 crankset. Built around Shimano's proven Hollowtech II construction, this 1x12-speed crank arm set is hollow-forged for an excellent balance of stiffness and low weight, with a wide 55 mm chainline tuned for modern Boost mountain bikes.
Highlights
- Lightweight, stiff power transfer from hollow-forged Hollowtech II crank arms
- 1x12-speed specific design for clean, simple trail and enduro drivetrains
- 55 mm chainline and 178 mm Q-factor optimised for 148 mm Boost frames
- 175 mm crank length
- Direct Mount chainring interface for quick swaps and secure chain retention
- Supplied as crank arms only - chainring and bottom bracket sold separately
Hollowtech II performance
The hollow-forged arms and 24 mm Hollowtech II axle deliver the stiffness you want under load while keeping rotating weight down, so more of your effort reaches the rear wheel and acceleration feels sharp.
Built for 1x12 trail riding
Designed as part of Shimano's 12-speed SLX group, the FC-M7120-1 uses a Direct Mount chainring (sold separately) for a simple, dependable single-ring setup. The wide 55 mm chainline prioritises frame and tyre clearance on long-travel Boost bikes.
Compatibility & fit
- Drivetrain: Shimano 12-speed (HYPERGLIDE+ / HG 12-speed chain)
- Chainring: Shimano Direct Mount, single-ring (e.g. SM-CRM75); sold separately
- Axle/spindle: Hollowtech II, 24 mm
- Hub spacing: 148 mm Boost (55 mm chainline)
- Bottom bracket: Hollowtech II outboard - threaded BB-MT800/BB-MT801 or press-fit BB-MT800-PA (sold separately); confirm your frame's BB shell standard
- Crank length: 175 mm
This product is the crank arm set only. A compatible Direct Mount chainring and Hollowtech II bottom bracket are required to complete the installation and are not included.
Shimano components are covered by the manufacturer's warranty against defects in materials and workmanship for the applicable warranty period from the date of purchase. The warranty does not cover normal wear, damage from crashes, improper installation, or lack of maintenance.
For warranty support, return the item to Tune Cycles and we'll manage the claim for you.
This warranty is in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
- Shimano SLX 1x12-speed mountain bike crankset (crank arms only)
- Hollow-forged Hollowtech II construction for stiffness and low weight
- 24 mm Hollowtech II axle
- 175 mm crank length
- 55 mm chainline, 178 mm Q-factor
- Optimised for 148 mm Boost hub spacing
- Shimano Direct Mount chainring interface
- Aluminium crank arms with steel axle
- Chainring and bottom bracket sold separately
| Brand | Shimano |
| Series | Deore SLX (M7100) |
| Model | FC-M7120-1 |
| Type | Crankset (crank arms only, no chainring) |
| Speeds | 12-speed |
| Configuration | 1x (single) |
| Crank length | 175 mm |
| Chainline | 55 mm (1x) |
| Q-factor | 178 mm |
| Spindle interface | Hollowtech II, 24 mm axle |
| Chainring mount | Shimano Direct Mount |
| Hub compatibility | 148 mm Boost |
| Crank arm material | Aluminium |
| Axle material | Steel |
| Chainring | Not included (sold separately) |
| Bottom bracket | Not included (sold separately) |
| Colour | Black |
| Part number | IFCM71201EXXT |
| SKU | SHM-IFCM71201EXXT |
| Barcode # | 4550170780517 |
| Brand | Shimano |
