MTB crankset and bottom bracket

MTB crankset and bottom bracket

Active filters

Left crank Shimano FC-M131
  • New product
  • Out-of-Stock
out of stock
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank Shimano FC-M131
Left crank Shimano FC-M131 length 170 mm for a square axle thread for the fixture of the pedal, international 9/16" new without packaging (5...
€6.99 Price
Left crank Prowheel 170 mm
  • New product
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank Prowheel 170 mm
Left crank Prowheel length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
Left crank FSA 170 mm
  • Used
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank FSA 170 mm
Left crank FSA length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the orientation...
€4.99 Price
Left crank Sram 175 mm
  • Used
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank Sram 175 mm
Left crank Sram length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
Left crank Sugino 170 mm
  • Used
  • Out-of-Stock
out of stock
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank Sugino 170 mm
Left crank Sugino length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle used in medium condition,...
€4.99 Price
SR Suntour crankset 175 mm
  • Used
  • Out-of-Stock
out of stock
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
SR Suntour crankset 175 mm
SR Suntour crankset 175 mm aluminium cranks length 175 mm chainrings 22, 32 and 42 teeth not removable, 70% of wear for a square axle threads...
€8.99 Price
Shimano TY701 crankset 170 mm
  • Used
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Shimano TY701 crankset 170 mm
Shimano TY701 crankset 170 mm aluminium cranks length 170 mm chainrings 24, 34 and 42 teeth not removable, 70% of wear for a square axle...
€8.99 Price
Left crank 170 mm square
  • New product
visibility Quick view cached
accessories-and-spare-parts-for-bicycles
Left crank 170 mm square
Aluminium left crank,  for a square axle 90° angle, see pictures, this position is not common, length 170 mm thread for the fixture...
€8.99 Price
Left crank Shimano FC-M131
  • New product
  • Out-of-Stock
out of stock
visibility Quick view cached
Left crank Shimano FC-M131
Left crank Shimano FC-M131 length 170 mm for a square axle thread for the fixture of the pedal, international 9/16" new without packaging (5...
€6.99 Price
SR Suntour crankset 175 mm
  • Used
  • Out-of-Stock
out of stock
visibility Quick view cached
SR Suntour crankset 175 mm
SR Suntour crankset 175 mm aluminium cranks length 175 mm chainrings 22, 32 and 42 teeth not removable, 70% of wear for a square axle threads...
€8.99 Price
Left crank Shimano FC-M131
  • New product
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Shimano FC-M131
Left crank Shimano FC-M131 length 170 mm for a square axle thread for the fixture of the pedal, international 9/16" new without packaging (5...
€6.99 Price
visibilityQuick viewcached
Left crank Prowheel 170 mm
  • New product
accessories-and-spare-parts-for-bicycles Left crank Prowheel 170 mm
Left crank Prowheel length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank SR Suntour 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank SR Suntour 175 mm
Left crank SR Suntour length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank FSA 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank FSA 170 mm
Left crank FSA length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the orientation...
€4.99 Price
visibilityQuick viewcached
Left crank Sram 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank Sram 175 mm
Left crank Sram length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank Sugino 170 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Sugino 170 mm
Left crank Sugino length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle used in medium condition,...
€4.99 Price
visibilityQuick viewcached
SR Suntour crankset 175 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles SR Suntour crankset 175 mm
SR Suntour crankset 175 mm aluminium cranks length 175 mm chainrings 22, 32 and 42 teeth not removable, 70% of wear for a square axle threads...
€8.99 Price
visibilityQuick viewcached
Shimano TY701 crankset 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Shimano TY701 crankset 170 mm
Shimano TY701 crankset 170 mm aluminium cranks length 170 mm chainrings 24, 34 and 42 teeth not removable, 70% of wear for a square axle...
€8.99 Price
visibilityQuick viewcached
Left crank 170 mm square
  • New product
accessories-and-spare-parts-for-bicycles Left crank 170 mm square
Aluminium left crank,  for a square axle 90° angle, see pictures, this position is not common, length 170 mm thread for the fixture...
€8.99 Price
visibilityQuick viewcached
Bottom bracket Tange square 107 mm
  • New product
  • -35%
fixie-crankset-and-bottom-bracket Bottom bracket Tange square 107 mm
Bottom bracket Tange, axle length 107 mm thread 1,37x24T frame width 68mm square axle sold without screws new with...
€19.49 Regular price -35% €29.99 Price
visibilityQuick viewcached
Left crank Shimano FC-M131
  • New product
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Shimano FC-M131
Left crank Shimano FC-M131 length 170 mm for a square axle thread for the fixture of the pedal, international 9/16" new without packaging (5...
€6.99 Price
visibilityQuick viewcached
Left crank Prowheel 170 mm
  • New product
accessories-and-spare-parts-for-bicycles Left crank Prowheel 170 mm
Left crank Prowheel length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank SR Suntour 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank SR Suntour 175 mm
Left crank SR Suntour length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank FSA 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank FSA 170 mm
Left crank FSA length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the orientation...
€4.99 Price
visibilityQuick viewcached
Left crank Sram 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank Sram 175 mm
Left crank Sram length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank Sugino 170 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Sugino 170 mm
Left crank Sugino length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle used in medium condition,...
€4.99 Price
visibilityQuick viewcached
SR Suntour crankset 175 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles SR Suntour crankset 175 mm
SR Suntour crankset 175 mm aluminium cranks length 175 mm chainrings 22, 32 and 42 teeth not removable, 70% of wear for a square axle threads...
€8.99 Price
visibilityQuick viewcached
Shimano TY701 crankset 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Shimano TY701 crankset 170 mm
Shimano TY701 crankset 170 mm aluminium cranks length 170 mm chainrings 24, 34 and 42 teeth not removable, 70% of wear for a square axle...
€8.99 Price
visibilityQuick viewcached
Left crank 170 mm square
  • New product
accessories-and-spare-parts-for-bicycles Left crank 170 mm square
Aluminium left crank,  for a square axle 90° angle, see pictures, this position is not common, length 170 mm thread for the fixture...
€8.99 Price
visibilityQuick viewcached
Bottom bracket Tange square 107 mm
  • New product
  • -35%
fixie-crankset-and-bottom-bracket Bottom bracket Tange square 107 mm
Bottom bracket Tange, axle length 107 mm thread 1,37x24T frame width 68mm square axle sold without screws new with...
€19.49 Regular price -35% €29.99 Price
visibilityQuick viewcached
Left crank Shimano FC-M131
  • New product
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Shimano FC-M131
Left crank Shimano FC-M131 length 170 mm for a square axle thread for the fixture of the pedal, international 9/16" new without packaging (5...
€6.99 Price
visibilityQuick viewcached
Left crank Prowheel 170 mm
  • New product
accessories-and-spare-parts-for-bicycles Left crank Prowheel 170 mm
Left crank Prowheel length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank SR Suntour 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank SR Suntour 175 mm
Left crank SR Suntour length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank FSA 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank FSA 170 mm
Left crank FSA length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the orientation...
€4.99 Price
visibilityQuick viewcached
Left crank Sram 175 mm
  • Used
accessories-and-spare-parts-for-bicycles Left crank Sram 175 mm
Left crank Sram length 175 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle, pay attention to the...
€5.99 Price
visibilityQuick viewcached
Left crank Sugino 170 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles Left crank Sugino 170 mm
Left crank Sugino length 170 mm threads for the pedal fixture 9/16" x 20 aluminium for a square axle used in medium condition,...
€4.99 Price
visibilityQuick viewcached
SR Suntour crankset 175 mm
  • Used
  • Out-of-Stock
out of stock
accessories-and-spare-parts-for-bicycles SR Suntour crankset 175 mm
SR Suntour crankset 175 mm aluminium cranks length 175 mm chainrings 22, 32 and 42 teeth not removable, 70% of wear for a square axle threads...
€8.99 Price
visibilityQuick viewcached
Shimano TY701 crankset 170 mm
  • Used
accessories-and-spare-parts-for-bicycles Shimano TY701 crankset 170 mm
Shimano TY701 crankset 170 mm aluminium cranks length 170 mm chainrings 24, 34 and 42 teeth not removable, 70% of wear for a square axle...
€8.99 Price
visibilityQuick viewcached
Left crank 170 mm square
  • New product
accessories-and-spare-parts-for-bicycles Left crank 170 mm square
Aluminium left crank,  for a square axle 90° angle, see pictures, this position is not common, length 170 mm thread for the fixture...
€8.99 Price
visibilityQuick viewcached
Bottom bracket Tange square 107 mm
  • New product
  • -35%
fixie-crankset-and-bottom-bracket Bottom bracket Tange square 107 mm
Bottom bracket Tange, axle length 107 mm thread 1,37x24T frame width 68mm square axle sold without screws new with...
€19.49 Regular price -35% €29.99 Price
visibilityQuick viewcached
Back to top

The Mtb crankset and bottom bracket assembly transmits the power supplied by the cyclist in the bicycle drivetrain and then to the rear wheel.

Use of an mountain bike crankset :



A MTB crankset consists of two cranks on which the pedals are fixed, on one of them, the Mtb drivetrain chainrings are also fixed. A Mtb bottom bracket containing the bearings is attached to the frame of the bike and with the crankset.

In order to match the morphology of each, there are several crank lengths: 170 mm, 172.5 mm, or 175 mm (for taller cyclists) are standard values.

Compatibility and choice of a Mtb crankset and bottom bracket:



There are several types of Mtb crankset assembly, in fact it can be made up of two cranks and of a Mtb bottom bracket provided with a axle or for the most recent models of two cranks, one of which has a fixed axle and a bottom bracket containing the bearings only.

Here are some examples of standards assembly:


Mtb crankset and bottom bracket:

  • the square axle which corresponds to an old type of assembly, still available on certain ranges Shimano, Stronglight, ...
  • the octalink axle is fluted, it was designed by Shimano
  • case in which the axle is part of one of the crank: hollowtech of shimano or X-type or Megaexo designed an axle diameter 24 mm, GXP of Sram, BB30 for an axle diameter 30 mm, Sram Dub for an axis diameter 28.99 mm and Paxis M30

Mtb bottom bracket and frame:

  • screwed by BSC standard thread (also called BSA): 1.37x24
  • press fit in the frame: press fit



The bearings of the Mtb bottom bracket can be steel or ceramic, this material is used to reduce friction and maintenance and increase service life. For best performance it is necessary that the balls and guide rings are made of ceramic.

Maintenance of an Mtb crankset :



The pedals and Mtb bottom bracket are subject to many stresse form environment such as mechanical and sealing constraints.

It is essential to regularly clean the cranks and the chainrings in order to remove the residues of dried grease, mud, dust, ... which could be accumulate and limit the functionnality of the Mtb drivetrain.

The Mtb bottom bracket bearings are greased for life, the balls and rings are not accessible and cannot be adjusted, greased or disassembled.

A wide movement in the bearings is the sign of the end of life of the Mtb bottom bracket.

Advice: please respect the tightening torque values ​​of the items screwed on carbon cranks, in fact, aluminum inserts are glued, they are used for the interface of tight items.

Accessories for mountain bike crankset :



We propose a wide choice of components and parts from over 350 brands available in stock at the best price.