







🚴♀️ Upgrade your ride, outpace the pack!
The CYSKY Mountain Bike Crank Arm Set is a precision-engineered aluminum alloy crankset featuring a 104mm BCD, available in 170mm and 175mm arm lengths. Designed for high axial strength and broad compatibility with Shimano, FSA, and Giant drivetrains, it includes a bottom bracket, chainring bolts, and installation tools for a seamless upgrade. Perfect for MTB, BMX, and road cyclists seeking a lightweight, durable, and stylish crankset that delivers reliable performance and easy installation.

























































| ASIN | B075FLCJLF |
| Best Sellers Rank | #172,410 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #312 in Bike Cranksets |
| Brand Name | CYSKY |
| Color | 170mm Red |
| Customer Reviews | 4.4 4.4 out of 5 stars (949) |
| Date First Available | June 4, 2017 |
| Item Package Dimensions L x W x H | 10.4 x 7.4 x 3.7 inches |
| Item Weight | 1 Pounds |
| Manufacturer | CYSKY |
| Material | Aluminum Alloy |
| Package Weight | 0.95 Kilograms |
| Part Number | CYSKY |
| Size | 104 BCD |
M**B
Perfect replacement for an FSA Comet crank
I wrecked my old original FSA Comet crankset (tore the spider apart somehow) so I needed a cheap replacement, fast. This crankset delivered. Despite being 5mil shorter than my old crank, it worked perfectly and I don't notice much of a difference besides a slightly faster pedal stroke. Easy to install since it fit my old bottom bracket perfectly. It also actually comes with a bottom bracket, but since mine wasn't broke, I didn't bother with the new one. Besides that, it's a crank and does what it needs to. The arm bolts to the crank thru-axle with two allen bolts so you don't need any crazy tools to install it. The only 'cheap' part on this is the endcap which is plastic - however the cap doesn't serve much purpose besides sealing off the thru hole from mud so the plastic is fine. I've been learning how to bunny hop so I have been really hammering on this crankset (along with typical MTB trail rides) and it holds up amazingly well. I'm honestly kind of surprised because I had much lower expectations. Highly recommended. No frills packaging, but who cares, it was WAY less than 100$ and had it within a couple of days.
J**Y
Huge improvement over stock crankset
I bought this crankset because I decided to completely replace and upgrade the stock drivetrain on my Schwinn Al Comp Walmart bike. I love this new crank set. I converted my 3x7 to a 1x7 and my bike has never felt so solid. The install was very quick and easy, but with a couple caveats below: Make sure you buy a bottom bracket wrench so that you can install and tighten the new bottom bracket. You won’t be able to install this kit without it. I wish that was more clearly stated on the product listing, as I almost didn’t order the wrench. But I’m glad I did. Now although the new stuff went on easy (provided you have the wrench) the old stock parts were a NIGHTMARE to remove. For the life of me I couldn’t get the original square post axle crankset off. I ended up buying a crank puller, but that didn’t work as the round peg couldn’t fit in the square hole to push the cranks off. It did however do a great job of pulling the threads out of the hole, oops. It took me a solid 2 days to get the cranks off and I ended up using an angle grinder to just cut them off. Thankfully the frame wasn’t damaged in the process. Your luck here may vary - and it’d probably be a lot faster and less stressful to take the bike to an expert technician and just have the old parts taken off for you if you get stuck. All and all I couldn’t be happier with this new crankset.
J**L
Nice Value Upgrade
The CYSKY Bike Crank Arm Set is a nicely packaged delivery of the Jiankun IXF Crankset. While this crankset is available from a variety of vendors, the CYSKY packaging and quick Amazon delivery make this a great choice. The crankset itself is solid, looks good, and was free of any real defects. As many have noted, the machined parts of the crankset are a little sharp, but for the most part it all works! The bottom bracket supplied feels silly light, but threaded nicely into my bike and so far has had done well. The setup has about 60 miles on it so far, and all is good. Paired it up with a JGBike chainring which fit like they were made to go together. You can find my unboxing of this set on the youtube user Quadsmack
K**N
Nice crankset!... BUT...
This is my 2nd set of this crankset (used first one on a mtb). This one was for my SS bmx/cruiser. They work well, and are well made (at an excellent price!). That being said, I had to knock off one star for it not being quite as advertised. It is listed to fit 68-73mm. While it will FIT 68-73, it cannot be adjusted to BE 68mm. I wanted a 68mm crankset for a SS that has a 68mm bottom bracket. The splines and tension nut do not allow for a 68mm BB, you have to space it out to at least 70.5mm in order for it fit. I had to use one spacer on the non drive side (making it 70.5mm), so as not to deviate the chain line on the drive side (but making the pedal offset slightly wonky). It's a great crankset, but the description should read: "70.5-73mm crankset that fits INTO a 68-73mm bottom bracket". No spacers should imply 68mm (but this crankset does not allow that), two spacers (one on each side) should be 73mm, and three spacers for front derailer (two on drive side to clear derailer, one on non drive side). I get it, that it FITS 68-73mm, but it is not adjustable to (properly) BE a 68mm crankset since the splines/compression nut do not allow it. So... unless you need a single speed 110mm "old school" drop out (most city SS's, BMX, etc), this is a GREAT crankset (I LOVE it on my 9spd MTB!). If you plan on using it on a SS/110 dropout... you're going to have to offset it like I did (single spacer on non drive side).
Trustpilot
1 month ago
1 day ago