The elegantly designed XTR FH-M9111 Boost 12-speed Micro-Spline rear hub for straight spoke from Shimano offers the well-known reliability and performance with a new, lightweight bearing and axle system.
Features – Shimano FH-M9111-BS 12-speed Micro-Spline Center-Lock Boost 12x148mm for Straight Spoke
- Increased acceleration by reducing inertia and weight
- New smaller spline diameter for 10T top gear
- Quick engagement: 9 deg max
- Faster acceleration
- Only compatible with Shimano Micro-Spline cassettes!
Product features
- Use: MTB
- Group:Â XTR M9100
- Model:Â FH-M9111-BS
- Gear:Â 12-speed
- Cassette mount: Micro-SplineÂ
- Brake type: Center-Lock Disc
- P.C.D.: left 45mm / right 61mm
- Flange diameter: left 51mm / right 68.4mm
- Flange distance:Â 56mm
- Offset: 6.8mm
- Hub: Labyrinth and contact seals
- Type:Â E-Thru Axle Boost
- Axle length:Â 12x148mm
Spoke hole
- 28h (Straightpull)
Material
- Hub:Â Aluminum AnodizedÂ
- Axle:Â Aluminum
- Freehub body: Aluminum AnodizedÂ
Weight
- 241g (manufacturer information)
Scope of delivery
- 1 x Shimano XTR FH-M9111-BS Center-Lock Rear Hub 12x148mm
Boost E-Thru Axle not included!
Technologies
MICRO SPLINE delivers lightweight aluminum FREEHUB body to reduce weight and 10 teeth top gear. Use combination with MICRO SPLINE cassette sprocket and FREEHUB.
Benefits & Features
- Lightweight aluminum MICRO SPLINE FREEHUB seamlessly integrates with small 10-tooth top gears.
- Smaller and more widely distributed splines limit cog damage on lightweight aluminum FREEHUB.










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