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Shimano GRX FC-RX820-1 HTII crankset, 1x12, 40T

225 €
RRP 306 €
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Delivery method on Thursday 22.01.2026
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Delivery method on Thursday 22.01.2026
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Shimano GRX FC-RX820-1 HTII cranks

Gravel cycling has its roots in simplicity, inclusiveness and curiosity . Everyone from beginners to grizzled veterans rely on Shimano GRX, the first gravel-specific set - for smooth shifting, reliable braking and exceptional off-road comfort.
Product details
Groupset Shimano GRX
Gears 1x12
Crank length 170 mm, 172.5 mm, 175 mm
Material Aluminium alloy
Converter 40T
Axis type 24 mm (Shimano/FSA...)
Technical designation FC-RX820-1-12
Technology HOLLOWTECH II
Chainline 49.7 mm
Q-Factor 151 mm
Spacing 110 mm
Recommended chain 12-speed HG
Package contents right crank with axle and gear, left crank, nut
Weight 652 g (172.5 mm, 40T)
product ID 244671
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WARNING
For assistance with installation, adjustment, and replacement of products not found in the user's manual, please consult the place of purchase or a distributor. A dealer's manual intended for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to carefully read this “user's manual” 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 damage to the 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 damage to the surroundings.

WARNING:
Do not disassemble or modify the product. This 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.

Shimano
Road and gravel Shimano
Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.
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