--- product_id: 48560663 title: "Crank Arm Set BCD 104 Red" brand: "fomtor" price: "€ 102.69" currency: EUR in_stock: true reviews_count: 10 category: "Fomtor" url: https://www.desertcart.de/products/48560663-crank-arm-set-bcd-104-red store_origin: DE region: Germany --- # 170mm crank arm length Includes bottom bracket & chainring bolts 104mm BCD compatibility Crank Arm Set BCD 104 Red **Brand:** fomtor **Price:** € 102.69 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Upgrade your pedal game with pro-level power and style! ## Quick Answers - **What is this?** Crank Arm Set BCD 104 Red by fomtor - **How much does it cost?** € 102.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/48560663-crank-arm-set-bcd-104-red) ## Best For - fomtor enthusiasts ## Why This Product - Trusted fomtor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rock-Solid Durability:** Forged crank arms and robust bottom bracket deliver stiff, reliable power transfer on rough trails and smooth roads alike. - • **All-in-One Upgrade Kit:** Comes complete with forged crankset, bottom bracket, chainring bolts, and Allen wrench—everything you need to upgrade in one package. - • **Versatile Compatibility:** Fits BSA 68-73mm bottom bracket shells and works flawlessly with FSA, Giant ATX770, XTC 750, and more—future-proof your ride. - • **Budget-Savvy Performance:** High-quality Hollowtech II clone design offers premium feel and function without the premium price tag—save £40+ instantly. - • **Precision Fit for Every Ride:** 104mm BCD and 170mm crank arm length ensure seamless compatibility with 9S-11S cranksets across MTB, road, folding, and BMX bikes. ## Overview The FOMTOR Bicycle Crank Arm Red is a 170mm forged crankset with a 104mm BCD, designed for mountain, road, folding, and BMX bikes. It includes a compatible bottom bracket and chainring bolts, offering a durable, Hollowtech II clone system that delivers solid performance and easy installation at a fraction of the cost of premium brands. ## Description FOMTOR Bicycle Crank Arm Set 104 BCD Road Mountain Bike Crankset with Bottom Bracket and Chainring bolts 170mm Crank Arm Review: So far so good! - I bought this to replace my outdated square taper BB and crankset that recently died on my MTB, 90% of my riding is done on my road bike so I needed something cheap and easy for my mountain bike. Upon opening the parts were all well packaged, and after inspecting them, all seemed pretty solid, the BB is near enough identical to a Shimano Hollowtech ii maybe along the same lines as a Claris or Sora model. The crank arms are robust and a little heavier than expected but that’s not a big deal. Extras include the chainring bolts and bb spacers. I fitted the bb and luckily didn’t need to to fit any spacers, I fitted my existing chainring to the crank spider and everything felt solid and the chain ran straight after tightening everything up. I tested it on a quick ride mixing up smooth tarmac, gravel tracks and some rocky downhill single track and it performed fantastically, the cranks feel solid and stiff, the previous square taper always seem to feel a bit spongy. Obviously I know that time will tell, and I will update my review in a few weeks/months will further info. But as it stands this is a real value for money purchase, you could spend £40/50 more on an official Shimano/SRAM product but you won’t go wrong here at all. Definitely worth an investment if you don’t want to spend too much, as buying unbranded Chinese stuff can be a gamble but it paid off for me! As I said before I’ll return with a further update after a few weeks of riding but all seems well at the moment! ***UPDATE*** So 2 months in and it’s still running perfectly! I was expecting the BB to go first but it’s still as smooth as ever, I’ve been on multiple XC rides through both wet and dry conditions as well as rough terrain, I also commute to work 4 times a week using the same bike so it’s had a whole load of use and yep, it’s perfect. I can thoroughly recommend this crankset it’s practically faultless considering it’s unbranded. The cranks are rock solid and can take a huge beating, the BB I’m still preparing to replace as it’s obviously not an official Shimano, but a Deore replacement is only about £10-£12. Review: Hollowtech II clone - superb quality - I've just purchased this set of cranks for my Son to replace his old square tapered bottom bracket and cranks. There were no reviews, so it was a bit of a gamble and felt it'd be worth it and it was. The cranks and bottom bracket immediately feel great quality and are pretty light. I was pleased that prior to purchase I thought they were a clone of a Shimano Hollowtech 2 system and was utterly delighted that they were when I saw them in the flesh - no chance was I spending hundreds on my teenage toerag! They're now on his bike and have been faultless. I implore anyone who needs to replace a bottom bracket and cranks to upgrade to these (if you're on a budget or want to move on from the square tapered type system). To get this bottom bracket sufficiently tight you'll need to buy a Hollowtech 2 bottom bracket spanner, such as this: https://www.desertcart.co.uk/gp/product/B01JHXTIXK Contained in the package is a bearing preload bolt which is made out of plastic. I personally think this is a good thing as it might prevent people overloading the bearings, although it's good plastic so maybe not! I did it finger tight - as is the requirement - and then tightened up the other crank arm. The arm doesn't hold the preload bolt in, so I removed it and plan to buy some bar end plugs to block the hollow axle up. This is far from a negative though, as once it's been used to add some "preload" (squeezing the arm lightly against the bearings/bottom bracket prior to tightening the arm up) there's no point in leaving it in. Also, I'll write this as I had a nightmare getting the old bottom bracket out and I'd hope that if others do, this might help. We did it by purchasing this bottom bracket remover for our old square taper type https://www.desertcart.co.uk/gp/product/B002NGO2EY and then bolted this to the bottom bracket using a washer and the bolt used to hold the old crank arm on. This then meant I could then put the newly purchased 32mm spanner on this bottom bracket remover and stand on it forcing it to undo. https://www.desertcart.co.uk/gp/product/B000LFXL1Y Also to help others, the bottom bracket undoes in the same direction you pedal the cranks when riding and this is the same for both sides. ## Features - BCD:104mm.Crank Arm length 170mm，Crank related holes distance 74mm - With Bottom Bracket. Bottom Bracket Diameter 23.79mm. B.B BSA:68~73mm - Compatible: single disc, double disc, three disc 9S 10S 11S crankset, FSA, Giant ATX770 ATX770-D XTC 750 bike - Suit for Mountain Bike, Road bike, Folding bike, MTB, BMX - Package Include: one fordged Crank set,Bottom Bracket,4 pcs single chainring bolts(set) ,and crank screw, crankset bolt Allen Wrench. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075F6TVPD | | Batteries included? | No | | Best Sellers Rank | 175,583 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 276 in Cranksets for Bikes | | Brand | FOMTOR | | Color | Red | | Customer Reviews | 4.3 4.3 out of 5 stars (322) | | Date First Available | 5 Sept. 2017 | | Is discontinued by manufacturer | No | | Manufacturer | FOMTOR | | Package Dimensions | 27.4 x 18.5 x 10.1 cm; 980 g | ## Images ![Crank Arm Set BCD 104 Red - Image 1](https://m.media-amazon.com/images/I/61p-mBC6SdL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ So far so good! *by M***N on 5 June 2020* I bought this to replace my outdated square taper BB and crankset that recently died on my MTB, 90% of my riding is done on my road bike so I needed something cheap and easy for my mountain bike. Upon opening the parts were all well packaged, and after inspecting them, all seemed pretty solid, the BB is near enough identical to a Shimano Hollowtech ii maybe along the same lines as a Claris or Sora model. The crank arms are robust and a little heavier than expected but that’s not a big deal. Extras include the chainring bolts and bb spacers. I fitted the bb and luckily didn’t need to to fit any spacers, I fitted my existing chainring to the crank spider and everything felt solid and the chain ran straight after tightening everything up. I tested it on a quick ride mixing up smooth tarmac, gravel tracks and some rocky downhill single track and it performed fantastically, the cranks feel solid and stiff, the previous square taper always seem to feel a bit spongy. Obviously I know that time will tell, and I will update my review in a few weeks/months will further info. But as it stands this is a real value for money purchase, you could spend £40/50 more on an official Shimano/SRAM product but you won’t go wrong here at all. Definitely worth an investment if you don’t want to spend too much, as buying unbranded Chinese stuff can be a gamble but it paid off for me! As I said before I’ll return with a further update after a few weeks of riding but all seems well at the moment! ***UPDATE*** So 2 months in and it’s still running perfectly! I was expecting the BB to go first but it’s still as smooth as ever, I’ve been on multiple XC rides through both wet and dry conditions as well as rough terrain, I also commute to work 4 times a week using the same bike so it’s had a whole load of use and yep, it’s perfect. I can thoroughly recommend this crankset it’s practically faultless considering it’s unbranded. The cranks are rock solid and can take a huge beating, the BB I’m still preparing to replace as it’s obviously not an official Shimano, but a Deore replacement is only about £10-£12. ### ⭐⭐⭐⭐⭐ Hollowtech II clone - superb quality *by M***E on 12 April 2019* I've just purchased this set of cranks for my Son to replace his old square tapered bottom bracket and cranks. There were no reviews, so it was a bit of a gamble and felt it'd be worth it and it was. The cranks and bottom bracket immediately feel great quality and are pretty light. I was pleased that prior to purchase I thought they were a clone of a Shimano Hollowtech 2 system and was utterly delighted that they were when I saw them in the flesh - no chance was I spending hundreds on my teenage toerag! They're now on his bike and have been faultless. I implore anyone who needs to replace a bottom bracket and cranks to upgrade to these (if you're on a budget or want to move on from the square tapered type system). To get this bottom bracket sufficiently tight you'll need to buy a Hollowtech 2 bottom bracket spanner, such as this: https://www.amazon.co.uk/gp/product/B01JHXTIXK Contained in the package is a bearing preload bolt which is made out of plastic. I personally think this is a good thing as it might prevent people overloading the bearings, although it's good plastic so maybe not! I did it finger tight - as is the requirement - and then tightened up the other crank arm. The arm doesn't hold the preload bolt in, so I removed it and plan to buy some bar end plugs to block the hollow axle up. This is far from a negative though, as once it's been used to add some "preload" (squeezing the arm lightly against the bearings/bottom bracket prior to tightening the arm up) there's no point in leaving it in. Also, I'll write this as I had a nightmare getting the old bottom bracket out and I'd hope that if others do, this might help. We did it by purchasing this bottom bracket remover for our old square taper type https://www.amazon.co.uk/gp/product/B002NGO2EY and then bolted this to the bottom bracket using a washer and the bolt used to hold the old crank arm on. This then meant I could then put the newly purchased 32mm spanner on this bottom bracket remover and stand on it forcing it to undo. https://www.amazon.co.uk/gp/product/B000LFXL1Y Also to help others, the bottom bracket undoes in the same direction you pedal the cranks when riding and this is the same for both sides. ### ⭐⭐⭐⭐ Good item for the price! *by C***S on 25 April 2020* At first I was dubious about this item, but after having used it for a few days now and given it some rough treatment it has held up very well. So would reccomend this to anyone. ## Frequently Bought Together - FOMTOR Bicycle Crank Arm Set 104 BCD Road Mountain Bike Crankset with Bottom Bracket and Chainring bolts 170mm Crank Arm (Red) - KMC Unisex - Adult X9SL Ti-N X9 SL 9 Speed Chain, 114 Links - Chainring 104 BCD 32T 34T 36T 38T Narrow Wide Single Chain Ring with 4 Pieces Sprocket Bolts for Road Bikes, Mountain Bikes, BMX MTB Bike --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/48560663-crank-arm-set-bcd-104-red](https://www.desertcart.de/products/48560663-crank-arm-set-bcd-104-red) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-05-01*