Shimano GRX FC-RX820-1 12-Speed Front Chainwheel
Versatile 1x Gravel Power for Mixed-Surface Riding
Shimano GRX FC-RX820-1 12-Speed Front Chainwheel - 170mm / 40T is backordered and will ship as soon as it is back in stock.
- Free shipping over ₹2,000Delivered across India
- 100% genuineAuthorised dealer, manufacturer warranty
- Cash on deliveryOn orders up to ₹20,000
- Secure checkoutUPI, cards and net banking
Shimano GRX FC-RX820-1 12-Speed Front Chainwheel - 170mm / 40T is backordered and will ship as soon as it is back in stock.
The Shimano GRX FC-RX820-1 crankset is designed for riders who split time between roads, gravel and rough backcountry tracks. It balances low weight with efficient power transfer to handle long days and changing surfaces. This is a crankset made for versatility, not compromise.
Optimised 1x Drivetrain Efficiency: Designed around a 1x setup, the FC-RX820-1 keeps things simple and reliable. Fewer components mean cleaner lines, less maintenance and consistent performance in dusty or muddy conditions. Ideal for gravel and adventure-focused riding.
Flexible Gearing Options: Pair this crank with either a 10–45T or 10–51T cassette to match your riding style. Choose closer gear steps for fast-paced gravel or wider range for steep climbs and loaded rides. It adapts easily to varied terrain and rider preference.
40T and 42T Chainring Choices: The FC-RX820-1 is available with 40T and 42T chainring options. This allows riders to fine-tune cadence and top-end speed based on terrain and fitness. A smart setup choice for long-distance and mixed-surface rides.
Offered in 170, 172.5 and 175 mm crank lengths, the GRX crankset supports precise bike fit. It delivers smooth, efficient power with a confident feel on unpredictable surfaces.
Product details
Specifications
Specifications
| Model No | FC-RX820-1 |
|---|---|
| Series | GRX |
| Color | Series color |
| Rear Speeds | 12 |
| Compatible Chain | HG 12-speed |
| Chain Line (mm) | 49.7 |
| P.C.D. (mm) | 110 |
| Spider/Gear Arms | 4 |
| Chainring Combination | 40T, 42T |
| Q-Factor (mm) | 151 |
| Crank Arm Length (mm) | 170, 172.5, 175 |
|---|---|
| Optional Chain Guard|Without Chain/Bash Guard: Yes | |
| Hollowtech II | Yes |
| Hollowtech Crank Arm | Yes |
| Compatible Bottom Bracket Type|Outboard | Yes |
| Recommended Bottom Bracket|Threaded (Normal): SM-BBR60 | |
| Recommended Bottom Bracket|Press-Fit | SM-BB72 |
| Threaded Bottom Bracket Shell Width (mm): 68, 70 | |
| Crank Fixing Screw Included | Yes |
| Average Weight (g) | 644 (40T), 656 (42T) |
Features
Features
Warranty and support
Warranty and support
Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.
Questions after delivery? Ask TBA Guide or WhatsApp us.
Shipping and returns
Shipping and returns
We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy
Most Shimano products take a little longer to ship.
Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy
