High Quality Shimano XTR FH-M9111-B Center Lock Disc 12 mm Thru-Axle Rear Hub

The XTR rear hub FH-M9111-B by Shimano – Micro Spline for 148 mm

The Shimano XTR FH-M9111-B rear hub is designed for wider rear triangles than the FH-M9111, i.e. 12 x 148 mm, but it also has a 12-speed Micro Spline freehub, which allows the mounting of a cassette sprocket with 10 teeth. Hub body and axle are made of lightweight aluminium, just like the freehub body. FH-M9111 was equipped with a sealed, maintenance-friendly cone bearing as is typical Shimano. Stainless steel balls, a ground bearing cup and a CBN-machined cone are used here. Quick Engagement technology ensures lightning-fast, efficient traction and, thanks to Shimano E-Thru, torsional stiffness leaves nothing to be desired.

Specifications:

Series:

XTR M9100

Application:

Cross Country, Enduro

Brake Type:

Center Lock Disc

Wheel Standard:

Boost

Freehub Body Type:

aluminium, Face ratchet, Quick Engagement (max. 7°)

Technical Information:

Body Material:

Aluminium

Bearings:

cup & cone

Seals:

labyrinth + contact

Features:

• flange diameter 56.25 mm left, 70 mm right
• 7.02 mm offset
• CBN fine-machined stainless steel ball bearings/polished
• aluminium axles
• anodised hub shell
• freehub body has contact seal
• better acceleration due to lower moment of inertia and weight
• smaller spline diameter for 10 T sprocket
• fast response

Technology:

E-Thru
E-Thru is a tool-free thru-axle system from Shimano that optimises the stiffness-to-weight ratio and ensures easy handling via its reliable internal cam mechanism. It is characterised by a high torsion resistance and thus also supports cornering at high speed. E-Thru thru-axle hubs and thru-axles are available in the corresponding over locknut dimensions for front and rear.

Cup and Cone Bearings
Angular contact ball bearings of the cup & cone type are superior to sealed cartridge bearings in terms of load carrying capacity, as they distribute lateral and vertical forces better, and thus run particularly smoothly and last a long time. They are also easier to adjust, maintain and replace.

Micro Spline
Micro Spline is an innovative tooth profile on MTB freehub bodies from Shimano. All Shimano 12-speed MTB cassettes with a 10-speed sprocket are equipped with Micro Spline freehub toothing. The significantly higher and finer toothing enables a stiffer connection between the cassette and the hub body. The resulting increased contact area ensures reliable power transmission, minimises wear and prevents deformation of the freehub and sprocket.

Models:

12 x 148 mm / 28 hole / Shimano Micro Spline:

Over Locknut Dimension:

12 x 148 mm thru-axle

Spoke Hole Count:

28 hole

Freehub:

Shimano Micro Spline

Gearing:

12-speed

Flange Distance (L/R):

63.06 mm (38.55 mm/24.51 mm)

Pitch Circle Diameter (L/R):

47.25 mm/61 mm

Manufacturer Number:

E-FHM9111BC

12 x 148 mm / 32 hole / Shimano Micro Spline:

Over Locknut Dimension:

12 x 148 mm thru-axle

Spoke Hole Count:

32 hole

Freehub:

Shimano Micro Spline

Gearing:

12-speed

Flange Distance (L/R):

63.06 mm (38.55 mm/24.51 mm)

Pitch Circle Diameter (L/R):

47.25 mm/61 mm

Manufacturer Number:

E-FHM9111BB

Contents:

• 1 x Shimano XTR FH-M9111-B rear hub
• 1 x aluminium lockring for brake rotors