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- Shimano UN54 Tapered Bottom Bracket
Shimano UN54 Tapered Bottom Bracket
Sorry - this product is no longer available
This Shimano UN54 Tapered Bottom Bracket is no longer available although you may find similar or newer versions below:
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Shimano UN54 Tapered Bottom Bracket
Shimano UN54 Tapered Bottom Bracket
Shimano
A good quality bottom bracket for traditional chainsets
read more
GBP
Rated -1/5
based on customer reviews
Add Shimano UN54 Tapered Bottom Bracket to your basket now
| 68 x 107mm | BS | Discontinued - no longer available | ||||
| 68 x 110mm | BS Double | Discontinued - no longer available | ||||
| 68 x 113mm | BS BB Mount | Discontinued - no longer available | ||||
| 68 x 113mm | BS Triple | Discontinued - no longer available | ||||
| 68 x 115mm | BS | Discontinued - no longer available | ||||
| 68 x 118mm | BS | Discontinued - no longer available | ||||
| 68 x 122.5mm | BS | Discontinued - no longer available | ||||
| 68 x 127mm | BS | Discontinued - no longer available | ||||
| 70 x 107mm | IT | Discontinued - no longer available | ||||
| 70 x 110mm | IT Double | Discontinued - no longer available | ||||
| 70 x 113mm | IT Triple | Discontinued - no longer available | ||||
| 70 x 115mm | IT | Discontinued - no longer available | ||||
| 73 x 107mm | BS | Discontinued - no longer available | ||||
| 73 x 110mm | BS | Discontinued - no longer available | ||||
| 73 x 113mm | BS | Discontinued - no longer available | ||||
| 73 x 118mm | BS | Discontinued - no longer available | ||||
| 73 x 122mm | BS | Discontinued - no longer available | ||||
Top Features of the Shimano UN54 Tapered Bottom Bracket
A good quality bottom bracket for traditional chainsets
- Super-accurate bearings for smooth operation and improved durability
- Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
- Lightweight hollow spindle
- Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
- Fast and easy installation without adjustment
- Narrow body allows clearance for cable routing under the bottom bracket
- BB Mount option with larger driveside flange for BB Mount specific front deraileurs
- MTB
- Road
About Bottom Brackets
Bicycle bottom brackets connect the cranks to the bike and allow the crank arms to rotate. There are various sizes of bottom bracket shell on the market, so compatibility needs to be checked. The three most common frame bottom bracket shell widths are 68mm (English threaded road and mtb), 70mm (Italian threaded road) and 73mm (British threaded mtb). There are also many axle shapes and styles, from JIS or ISO square tapers through to the round splined axles such as ISIS or Octalink and then there is the new external cup systems which have the axle built into the crank arms. Some frames are now using the new BB30 system which uses bearings pushed directly into the frame and removes the needs for cups to be threaded into the frame.
About the Shimano brand
Shimano are the makers of the world's most well known cycle component brand. Established in 1921 when the first cycle freewheel was forged. Shimano produce drivetrains, wheels, pedals, shoes, cycling clothing and pretty much every Shimano cycle accessory you can think of! Famous for their top end products ridden by the pro's, Dura-Ace and XTR, which cover both road and MTB's. At Shimano, they're doing everything they can to respond to heightened environmental concerns. Shimano are proud to be a producer of bicycle components that help people to enjoy outdoor sports and interact with nature through healthy non-polluting activities. In their 87 plus years of existence Shimano have accumulated a wealth of technology and product development and expertise that serves as the driving force behind their continually evolving product line.
Delivery Information
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Returns Information
- We will happily refund or exchange any item purchased on Wiggle if returned to us within 30 days, excluding Wiggle gift vouchers and personalised products except when faulty.
- We make no charge for returns - there is no restocking fee.
- Returned goods must be unused and supplied with their original packaging.
- We pay the return postage on any faulty item - Read more.
Magazine reviews for Shimano UN54 Tapered Bottom Bracket
Review from What MTB
Square taper cranks and bottom brackets (BB's) ruled until about a decade ago. They might be officially obsolete but they still live longer than anything else.
There are some superbly engineered square taper cranks still available online in the form of Middleburn RS7s, Shimano XT and Race Face Turbines.
As long as you fit it correctly and tightly, the UN54 bottom bracket is squeak-free and stiffer than you'd expect given the external BB hype.
The last unit we replaced had run almost daily for close to six years, so you can't beat square taper BB's for lifespan.
In conclusion...
Should outlast all the competition but carries a weight penalty
