HollowTech II bottom bracket assembly. Set includes left and right hand cups, spacers, inner cover, and inner O-rings. Sealed cups keep out dirt and water Maintenance free...
I have had three or four of these because they were cheap, it turned out that in the long run it was cheaper to save up and buy a decent bottombracket. Everyone of these that I bought broke in under a month, the same two faults occured each time. 1) Mud and grit easily get past the seals and wear out the bearings causing them to cease or rattle. 2) The ends of the tapered arms round off very easily, even during light XC and commuting use I have rounded them off. Steer clear and buy a decent bottombracket, or even better get the new external type, or if your into jumping and DH get some 3piece cranks. ...
Advantages: Cheap, extremely durable, abuse tolerant Disadvantages: Poor crank choice, may not be suitble for extreme use
What's this?
It is a JIS square tapered BB. And in english...
BB - bottombracket. Screwed into the frame and serves as a mounting point for your cranks.
Square taper - Axle shaft of the bottombracket is tapered. The shaft is wider at the base than it is at the tip, so it ensures a very tight fit when the crank is tightened up. It fits square holed cranks only.
JIS - Japanese International Standard. This is a measure of the degree of taper. There is also the ISO standard used by European manufacturers, such as Campagnola. The vast majority of mountain bike cranks are JIS. An ISO crank may or may not fit a JIS square taper BB depending on the tolerances and amount of wear.
Evolution or Devolution?
In the last few years BB's have undergone something of a revolution. Octalink from Shimano, ISIS from ...
Advantages: built in external BB, good quality Disadvantages: None
I bought this to replace the SR Suntour cranks and stock ShimanoBottomBracket on my Trek 4300.
A fantastic upgrade, extremely sturdy, nice stiff cranks, excellent machine work.
And to top it off, no internal BottomBracket is needed. Something I dont think a lot of the adverts for the item make enough of. You don't need to bother measuring your spindle as you just need to remove the entire bottombracket and fit the M532 with the inbuilt external BB.
You will need additional tools to fit this, but they can be picked up relatively cheaply and you never need to worry about wearing out any bearings in the bottombracket again.
It took me 15 minutes to fit, simply remove your old cranks, remove the BB and slot this in place. It comes with various spacers to adjust the width depending on your frame size and once fitted it ...
Product Information for "Shimano Bottom Bracket Cups Deore M530/532/590" »
Product details
Manufacturer
Shimano
Manufacturer's product description
Shimano Bottom Bracket Cups Deore M530/532/590. Bottom Brackets. Genuine Shimano HollowTech II bottom bracket assembly. Set includes left and right hand cups, spacers, inner cover, and inner O-rings. Sealed cups keep out dirt and water Maintenance free Compatible with 68mm and 73mm shell Durable silver a ....
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