Velox 25g carbon assembly grease
Facilitates the assembly of carbon parts
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Shimano Ultegra R8100 12-speed road bike crankset
Voir les avis clients(48 reviews)
12-speed, 11-speed compatible
Notre avis
The Shimano R8100 crankset is very similar to its big brother, the Dura-Ace R9200. It uses the same technology with a 24mm axle, a lightweight and rigid aluminium alloy and formidable indexing precision.
Aurélien L.
Cycling in all its forms
The Shimano Ultegra R8100 crankset retains the strengths of the previous version with a 24mm axle and premium aluminium alloy. For Shimano, this material offers the best weight-to-stiffness ratio. This crankset retains the 4-arm design, with chainring sizes ranging from 50/34 to 52/36. Shimano has further improved its indexing, particularly in terms of shifting precision and the shift ramp. When paired with the DI2 front derailleur, it takes approximately a quarter-turn to shift from one chainring to the other. The Hollowtech II technology, which enables the construction of a hollow crankset, is retained.
New update available on the Shimano E-Tube app for even greater precision.
Technical specifications
- 4-arm cranks
- Hollowtech II technology
- 24mm axle
- For 12-speed drivetrains
- Chainring sizes: 50/34 and 52/36
- Crank lengths: 165/170/172.5 and 175mm
- Bottom bracket not included
- Manufacturer’s weight: 681 grams (52/36 and 170mm)
- Brand: Shimano
Presentation and review of the new Shimano 12-speed groupset on velotech.fr: New Shimano 12-speed road groupset: R9200 and R8100
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We value your opinion
Our customers, our best ambassadors
-
Albert V. 
Published Aug 01, 2026 at 06:55 pm (Order date: Jul 21, 2026)Nickel (Translated review)
- BPM waters TPI D.
Published Jul 23, 2026 at 07:38 pm (Order date: Jul 11, 2026)Not tested yet for the moment. (Translated review)
- BRUNO F.
Published Jul 21, 2026 at 11:54 am (Order date: Jul 06, 2026)Perfect (Translated review)
- Régis F.
Published Jul 09, 2026 at 06:21 pm (Order date: Jun 26, 2026)Ultegra: quality always on point (Translated review)
- Bernard M.
Published Jul 05, 2026 at 07:19 am (Order date: Jun 19, 2026)5/5 (Translated review)
- Xavier R.
Published May 28, 2026 at 11:07 pm (Order date: May 17, 2026)Very happy to have received it and very very satisfied (Translated review)
- Philippe G.
Published May 28, 2026 at 07:03 pm (Order date: May 15, 2026)Great price for a top product (Translated review)
- Christian D.
Published May 23, 2026 at 11:39 pm (Order date: May 12, 2026)Light and rigid Ultegra pedal. It's a 12-speed, which installed on my bike equipped with a 105 11-speed group works perfectly... (Translated review)
- TONY G.
Published May 22, 2026 at 10:13 pm (Order date: May 11, 2026)Same. (Translated review)
- Olivier P.
Published May 15, 2026 at 07:51 pm (Order date: May 03, 2026)Very good product (Translated review)
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