Shimano GRX FC-RX610-1 HT II cranks, 1x12, 38T
Shimano GRX FC-RX610-1 HTII cranks
The FC-RX610 cranks offer all the features of the higher-end RX820 series, but also impress with their excellent price-performance ratio. Due to the slightly simpler choice of materials, they weigh a few grams more, but their stiffness and functionality are at the same high level. The workmanship is also of very high quality and tailored to the intended use, so the cranks will be your faithful companion for many kilometers.Rooted in simplicity, reliability and adventure, the new 12-speed GRX kit provides more shifting options along with unrivaled ergonomics. So riders get the most out of every "non-asphalt" adventure, no matter where it is.
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Optimal gear combination for different terrains and riding styles
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The cranks are designed for 12-speed shifting systems.
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| Groupset | Shimano GRX |
| Gears | 1x12 |
| Crank length | 172.5 mm, 175 mm |
| Recommended bearings | BB-RS501 (Thread) / BB-RS500 (Press Fit) |
| Chainline | 49.7 mm |
| Q-factor | 151 mm |
| Axle diameter | 24 mm (Hollowtech II) |
| Bolt spacing (BCD) | 110 mm |
| Converter | 38T |
| Weight | 798 g |
| product ID | 248756 |
WARNING
For installation, adjustment and replacement information about the products which are not found in the user's manual, consult the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this "user's manual" thoroughly before use, follow it for correct use, and save it so that you can refer back to it at any time.
The following directions must be always followed in order to prevent personal injury, physical damage to equipment or surroundings. The directions are classified according to the degree of danger or damage which may occur if the product is used incorrectly.
DANGER - Failure to follow the directions will result in death or serious injury.
WARNING - Failure to follow the directions could result in death or serious injury.
CAUTION - Failure to follow the directions could result in personal injury, or physical damage to equipment or surroundings.
WARNING:
Do not disassemble or modify the product. It may cause the product to not operate correctly, and you may fall unexpectedly and be seriously injured.
Before riding the bicycle, check that there are no cracks in the crank arms. If there are cracks, the crank arm may break and you may fall off the bicycle.
Be careful not to allow parts of your clothing to get caught in the chain during riding. If you do, you may fall off the bicycle.
CAUTION:
Be careful not to touch the gear teeth. There is a danger of injury.
All the answers to questions about delivery, payment, security, returns, warranty and much else.

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