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HomePaymentShippingReturn PolicyAbout UsFeedbackContact UsShimano GRX FC-RX820-2 Gravel Crankset 48-31T 2x12-Speed New Optimal gearing for spirited group rides and aggressive racing The SHIMANO FC-RX820-2 balances weight savings and optimal efficiency for mixed-terrain riding and racing. Double chainring gearing caters to the segmented demands of gravel cycling, maintaining the tighter gear steps needed to maintain your position in the bunch. The 2x12-speed crank utilizes a 48-31T chainring and comes in 170, 172.5, and 175 mm crank arm lengths. FEATURES:Smaller gear steps for cadence control on mixed-terrain ridingGravel-optimized gear ratios preserve riding rhythm on rough surfacesWider gear range17T range covers array of riding conditionsGear combination: 48-31T SPECIFICATIONS:MODEL NOFC-RX820-2SERIESGRX 12-speedColorSeries color | Series colorAverage weight710Rear speeds12 - 12Compatible chainHG 12-speedChain line (mm)47 - 47P.C.D. (mm)110/80 - 110/80Spider/gear arms4Chainring combination48-31T | 48-31TQ-factor (mm)151Crank arm length (mm)|170✔Crank arm length (mm)|172.5✔Crank arm length (mm)|175✔Optional chain guard|Without chain/bash guard✔HOLLOWTECH II✔HOLLOWTECH crank arm✔Compatible bottom bracket type|Outboard✔Recommended bottom bracket|Threaded (normal)SM-BBR60 | SM-BBR60Recommended bottom bracket|Press-FitSM-BB72 | SM-BB72Threaded bottom bracket shell width (mm)|68✔Threaded bottom bracket shell width (mm)|70✔Crank fixing screw included✔PaymentDelivery detailsReturnAbout usContact usPaymentWe accept payment only through eBay Managed Payment. PayPal, VISA, MASTER and OTHER Major Credit Cards are acceptable. Please make sure your shipping address in PayPal is correct. Delivery details➥ All packages will be shipped by the Hong Kong Post. ➥ Items will be shipped within 3 working days after payment is received.(Working day exclude Saturday, Sunday and Public holidays.) ➥ The delivery takes 7 to 12 days to US area in general. Most of the other major countries takes 7-15 days. For the SF Express service, it takes longer time 30-60 days to Mexico, Brazil, Israel. ➥ Shipping is only available to the address registered on eBay. We reserve the right to charge the shipping fee again for returned items due to wrong or deliverable address. ➥ The delivery time shown on eBay is for reference only. The actual delivery time shall prevail. ➥ Due to the impact of logistics policies, batteries cannot be shipped from Hong Kong. So all products with batteries will not contain batteries. ➥ You can check the logistics tracking information through this link( https://www.17track.net/en). ➥ Packages will be transferred to the local agent for the final delivery (Mostly Local Post Office e.g. USPS) Return➥ We accept return within 30 days from delivery date after receiving the parcel. ➥ Returned goods must be unused and supplied with original packaging, unless the goods are faulty. ➥ The buyer need to compensate the goods(The amount of compensation is equal to the amount paid by the buyer for the goods) if the seller finds the goods are damaged when receive the goods. ➥ We do not accept refunds without certification from relevant professionals. ➥ Buyers need to pay the cost of shipping the goods and the cost of returning the goods If: a. the goods are not defective and you want to return the goods. b. the seller has told you that the goods are defective and you accept it but you want to return. ➥ Buyers need to pay the cost of shipping the goods and the cost of returning the goods If: a. the goods are not defective and you want to return the goods. b. the seller has told you that the goods are defective and you accept it but you want to return. ➥ Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. About usWe are a group of young people who addict to bicycle. Our purpose is providing good service and affordable price for buyers and encouraging more people to enjoy cycling. Thousands of cycling products were sold to customers around the world. We hope our bike store will be your one stop buying source. If you don't see the bicycle products that you want, please contact us for more details. All the products are 100% real and authentic, ASIABIKESHOP do not sell any fake product to customers. Sometimes, the item price is low because of stock clearance. Contact usPlease feel free to contact us by ebay message if you have any interested item or problem. We will reply your message ASAP. Thank you.