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Shimano RS770 Rear Disc Hub 32Hole Shimano RS770 Rear Disc Hub 32Hole
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Shimano RS770 Rear Disc Hub 32Hole

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The Shimano RS770 Rear Disc 32 hole Hub builds off the success of their previous Ultegra 6800 hub, adding in E-Thru Axle and disc brake compatibility. Featuring a lightweight aluminum construction, when paired with the RS770 Front Disc Hub, the set shaves 60 grams off the previous version even with the addition of disc brake and Thru Axle compatibility. Designed for stiffness, responsiveness, and comfort, the RS770 hubs offer greater stability and more efficient power transfer that comes straight from Shimano's top-of-the-line tech.


  • 10/11-speed compatible.
  • Hub width: 142mm.
  • Spoke holes: 32.
  • Disc brake mount: Center Lock.
  • Weight: 294 grams.
  • 12mm E-Thru Axle compatibility.

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Discount Codes are not applicable to Closeouts.

This product is NOT Eligible for VIP Points.

Rear Hub Spacing: 12x142mm 

Mfg PartNum: EFHRS770B 

Disc Bolt Pattern: Center Lock 

Hub Drilling: 32 Hole 

Ordered by Most Relevant First
5 stars
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1 stars
Reviewed 9/12/2018
by Tom
Denver, CO
Value Rating
Overall Rating
3 of 3 customers found this review helpful.
Economical 12x142 TA freehub with loose ball bearings

This is a pretty standard loose ball Shimano hub. It doesn't have the digital adjustment process that the last gen of Ultegra and DA hubs had, so you need 2x 17mm wrenches to open it up. I built it up on HED Belgium rims and the set is bomb proof. The freehub was sticking a bit when I first received it, but loosened up after the first ride. The bearing adjustment was off as wheel (too much play), but I opened it up, repacked the grease, and tightened it up and it's been fine for 500 miles. They roll really smooth and are incredibly inexpensive compared to other TA 12x148 roadgravel options (i.e. DT 240s, etc.)

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Reviewed 12/8/2020
by Jeff
Cycling Enthusiast
Portland, Oregon
Value Rating
Overall Rating
Excellent Hubs

I used these hubs with DT SWISS R460 rims to build up some Winter rain riding wheels. They're Ultegra quality and work very well. The Shimano 105 rotors and Ultegra cassette installed easily on them. No brake caliper or derailleur adjustments were necessary after plugging the wheels into my Trek Checkpoint SL6 bike. So far, bearings smooth as silk after about 500 mi.

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