Catalogue naming note
Shimano groups mechanical and Di2 105 under the same R7100 series name on the official site; the mechanical shifter code R7120 is used more in retail than on the official spec page.
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Shimano 105 R7120
Estimate incl. VAT
700 € – 900 €
Mechanical 12-speed variant within the current 105 R7100 series; reliable and easy to maintain.
Atelier selection
Detalles técnicos
- Speeds
- 2x12
- Shifting
- Mechanical
- Brakes
- Hydraulic disc
- Model series
- R7100 (mechanical shift levers often labelled R7120)
Explicitly labelled not a factory-named group: mechanical 105 is shown on shimano.com as part of the R7100 line, not as a separate 'R7120' marketing product. Re-verified (2025-06-11): the page remains a Next.js app with zero static images (no jpg/png/webp) in the raw HTML or __NEXT_DATA__; the corresponding bike.shimano.com product-detail page (which does have a photo gallery) is blocked by Akamai bot protection in this sandbox (HTTP 403 'Access Denied' on every user-agent/IP attempt), so it could not be used as a substitute source.
Why it matters
Coherent atelier packages
These are our configurator packages, not necessarily the manufacturer’s stock specification.
- Cassette
- 11-34T
- Chainrings
- 50/34T
- Rear derailleur
- RD-R7100
- Chain
- Shimano 12s
- Check freehub options
- HG
- Crank lengths
- 170 mm / 172.5 mm / 175 mm
- Cassette
- 11-36T
- Chainrings
- 50/34T
- Rear derailleur
- RD-R7100
- Chain
- Shimano 12s
- Check freehub options
- HG
- Crank lengths
- 170 mm / 172.5 mm / 175 mm
Will it fit your build?
Possible frames in the configurator
The configurator estimate is not a quotation. Thomas confirms price, specification and availability.
Especificaciones explicadas
Speeds2x12
More gears can give smaller steps but do not tell you how easy climbing will be. Climbers and loaded riders should consider the lowest gear; fast flat-road riders cadence steps and the highest gear.
ShiftingMechanical
Electronic shifting offers light, consistent operation but needs charged batteries. Mechanical shifting needs no charging and often suits tighter budgets. On gravel, chain control and the right derailleur also matter; choose a coherent package.
BrakesHydraulic disc
Hydraulic disc brakes can provide strong, controllable braking, especially in rain and descents. Rim brakes require a suitable frame and braking surface. For loads and long descents, consider the complete brake, rotor, mounting and heat-management combination.
Model seriesR7100 (mechanical shift levers often labelled R7120)
Model code and generation identify the exact component. Similar names do not mean identical interfaces or specifications. For upgrades and replacements, version and model year matter; the newest version may not fit your bike.
Preguntas frecuentes
What is the Shimano 105 R7120?
Mechanical 12-speed variant within the current 105 R7100 series; reliable and easy to maintain. Explicitly labelled not a factory-named group: mechanical 105 is shown on shimano.com as part of the R7100 line, not as a separate 'R7120' marketing product. Re-verified (2025-06-11): the page remains a Next.js app with zero static images (no jpg/png/webp) in the raw HTML or __NEXT_DATA__; the corresponding bike.shimano.com product-detail page (which does have a photo gallery) is blocked by Akamai bot protection in this sandbox (HTTP 403 'Access Denied' on every user-agent/IP attempt), so it could not be used as a substitute source.
Manufacturer informationWhat does shifting mean on the Shimano 105 R7120?
Shifting: Mechanical. Electronic shifting offers light, consistent operation but needs charged batteries. Mechanical shifting needs no charging and often suits tighter budgets. On gravel, chain control and the right derailleur also matter; choose a coherent package.
Shimano technische handleidingenWhat does speeds mean on the Shimano 105 R7120?
Speeds: 2x12. More gears can give smaller steps but do not tell you how easy climbing will be. Climbers and loaded riders should consider the lowest gear; fast flat-road riders cadence steps and the highest gear.
Shimano technische handleidingenWhat should I check before fitting the Shimano 105 R7120?
Cassette, chainrings, chain and rear derailleur form one package. Also check the cassette driver, frame interface and exact generation. The atelier packages shown are not claims about manufacturer stock builds.
Manufacturer information