Shimano FH-RS770 Center Lock Disc Rear Hub for 12 mm Thru-Axles

The Rear Hub FH-RS770 by Shimano - An option for disc road bikes

The Shimano FH-RS770 rear hub is a groupless model designed for Road bikes with disc brakes and 12 x 142 mm thru-axles. It is about equal to Ultegra. The 11-speed steel freehub ensures efficient acceleration. Body and axle are made of weight-saving aluminium. Of course, FH-RS770 was also equipped with low-maintenance, sealed cup & cone bearings.

Specifications:

Application:

Road, Cyclocross

Brake Type:

Center Lock Disc

Freehub Body Type:

steel

Technical Information:

Body Material:

aluminium

Bearings:

cup & cone

Seals:

contact

Features:

• Ultegra-level rear hub
• efficient acceleration
• flange diameter 52.8 mm left, 53.8 mm right
• 7.5 mm offset
• CBN precision machined bearings
• aluminium axles
• anodised hub shell

Technology:

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.

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.

Models:

12 x 142 mm / 28 hole / Shimano:

Over Locknut Dimension:

12 x 142 mm thru-axle

Spoke Hole Count:

28 hole

Freehub:

Shimano Road

Note:

Installing 8-/9-/10-speed cassettes on Shimano Road freehub bodies requires a 1.85 mm spacer.

Gearing:

8-/9-/10-/11-/12-speed

Flange Distance (L/R):

55.7 mm (35.35 mm/20.35 mm)

Partial Bolt Circle Diameter (L/R):

44 mm/45 mm

Manufacturer Number:

E-FHRS770C

12 x 142 mm / 32 hole / Shimano:

Over Locknut Dimension:

12 x 142 mm thru-axle

Spoke Hole Count:

32 hole

Freehub:

Shimano Road

Note:

Installing 8-/9-/10-speed cassettes on Shimano Road freehub bodies requires a 1.85 mm spacer.

Gearing:

8-/9-/10-/11-/12-speed

Flange Distance (L/R):

55.7 mm (35.35 mm/20.35 mm)

Partial Bolt Circle Diameter (L/R):

44 mm/45 mm

Manufacturer Number:

E-FHRS770B

12 x 142 mm / 36 hole / Shimano:

Over Locknut Dimension:

12 x 142 mm thru-axle

Spoke Hole Count:

36 hole

Freehub:

Shimano Road

Note:

Installing 8-/9-/10-speed cassettes on Shimano Road freehub bodies requires a 1.85 mm spacer.

Gearing:

8-/9-/10-/11-/12-speed

Flange Distance (L/R):

55.7 mm (35.35 mm/20.35 mm)

Partial Bolt Circle Diameter (L/R):

44 mm/45 mm

Manufacturer Number:

E-FHRS770A

Contents:

• 1 x Shimano FH-RS770 rear hub