Buy Shimano Deore M591 Crankset with Bottom Bracket (175mm, 44/32/22)Shimano Deore M591 Crankset with Bottom Bracket (175mm, 44/32/22) Product Description:
- Integrated crank arm and bottom bracket spindle
- Wider bearing placement for better power transfer
- Bottom bracket parts are included
- 175mm crank arm length
- Chainring sizes are 44, 32, & 22
Product Description
Integrated crank arm and BB spindle, increased rigidity with less weight.Wider bearing placement for better power transfer.Bottom bracket includedWithout chainguard
Customer Reviews
Most helpful customer reviews
18 of 18 people found the following review helpful.
Good crankset with external bearing bottom bracket
By D. Torgerson
I bought this for a project bike about 3 months ago and have taken quite a few rides with it now. I feels solid, shifts smoothly, and it's built well as it should be for Deore level. This replaced a medium level Truvativ set and feels more solid and better shifting.It's definately a pretty decent deal with the included bottom bracket which is EXTERNAL BEARING by the way (it didn't say when I purchased it) with the standard spacers for 68mm openings. The shell (the cylindrical opening on your bike frame where the bottom bracket goes) on mtb's generally is 68 or 73mm so if your shell width (measured side to side thru the cylinder) is 68mm, you'll need to put the spacers (basically plastic washers) on to bring it to 73mm (typically one spacer on non-drive side and two on the drive side) but it explains all of this in the fairly decent instuctions as well. External bearing is the better option in my opinion because the bearing points have a wider stance that translates to better power transfer, less flexing etc. I have both square taper and external bearing on other bikes. The bottom bracket that I replaced with this one was square taper and I definately noticed a difference in flex while riding.It is pregreased though I used some of my own waterproof grease for the threads etc. I believe it is installable right out of the box, though, with a bead of grease around the shaft openings. You'll need an external bearing wrench or adapter such as Park Tool Bottom Bracket Tool - BBT-19 to tighten the cups. If you are replacing a square taper, it'll work just fine and you'll need some specific tools to get the cranks off and remove the old bottom bracket-I'll list them cause it took me a while to figure out what type I had and what tools I needed back when I started. You'll need a crankpuller such as Park Tool Crank Puller - CCP-22 to remove the crank arms, and a bottom bracket star type adapter such as Park Tool BBT-22 Shimano Sealed Cartridge Bottom Bracket Tool to remove (unscrew) the bottom bracket on both sides. I recommend Park Tool highly, but there other versions that may be a little cheaper that will work too- just read reviews. There are helpful vids on YouTube that show you how to remove/install bottom brackets and anything else really done by pro bike mechanics and garage monkeys alike.The only thing I wasn't pleased with at all was the "Deore" on the crank arms rubs off VERY easily (thus the four stars). The letter at the end of the word closest to the pedals on both sides was significantly faded after the first ride and is now gone just from shoe rub (like a scratchit lottery ticket)...thanks Indonesia!!! Makes your brand new crankset look older right away...irritating, but only cosmetic and it's still a good purchase.Hope this was helpful- Amazon didn't say enough about it so I figured I'd cover what they didn't. I had to hope it was the kind I wanted and wouldn't you know it, it was!
4 of 5 people found the following review helpful.
Excellent value, smooth shifting.
By Li
Bought this to replace the crappy truvativ five D on my commuting bike, wow, what a difference! The front shifting is at least 2-3x smoother than before with no jerking during up-shifting. Almost couldn't feel the shifting action!Fairly light, about 900 gram, not to mention this crankset looks really cool on the bike as well.The only downside been the largest chainring is made of aluminum, a few tooth already had wear, and the paint on the largest chainring already chipped during first ride.***It does not come with chain guard! Only OEM Cranksets sold in bike shops will have chain guardinstalled.
1 of 1 people found the following review helpful.Shimano is always a great value
By JohnnyB
I use Shimano parts for all of my 10 bikes, and dependable like this crank.This crank uses the higher-end product (think LX, XT, and XTR) technology and makes it very affordable. Slightly heavier, but I don't care. When used with Deore derailleurs, it shifts well and is very quiet.The bottom bracket is very good too, an outboard system that uses different tools, make sure you tighten the pinch bolts to torque specs and I use blue loctite.
Latest Price: See on Amazon.com!
More Info: See on Amazon.com!
See Customers Review: See on Amazon.com!
