Shimano BB-UN55 Square Taper Bottom Bracket

Item number: 30317
28
28
from 10.92€

excl. shipping cost
to the delivery destination: USA

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The BB-UN55 bottom bracket by Shimano - with square cones


BB-UN55 is one of the most widely used Shimano square taper bottom brackets. A square cone connects the bottom bracket axle with the crank. BB-UN55 is available in a variety of designs for use on the road, off the road and in the city.

Specifications:


Application: Road, Cross Country, City, Touring
Type: BSA, ITA
Shell Width: 68 mm, 70 mm, 73 mm
Axle Length: 107 mm, 110 mm, 113 mm, 115 mm, 118 mm, 122.5 mm, 127.5 mm
Axle Type: square taper (JIS)
E-Type Compatibility: no
Chaincase Compatibility: no

Technical Information:


Bearings: steel
Axle Material: steel
Bottom Bracket Cup Material: aluminium (left), steel (right)

Features:


- for all cranks with JIS square mount
- Shimano lettering

Models:


BSA 68x107:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 107 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55B07

BSA 68x110:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 110 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55B10

BSA 68x113:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 113 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55B13

BSA 68x115:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 115 mm
- Contents: incl. crank bolt
- Factory Number: E-BBUN55B15

BSA 68x118:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 118 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55B18

BSA 68x122.5:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 122.5 mm
- Contents: incl. crank bolt
- Factory Number: E-BBUN55B22

BSA 68x127.5:
- Threads: BSA
- Shell Width: 68 mm
- Axle Length: 127.5 mm
- Contents: incl. crank bolt
- Factory Number: E-BBUN55B27

BSA 73x110:
- Threads: BSA
- Shell Width: 73 mm
- Axle Length: 110 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55C10

BSA 73x113:
- Threads: BSA
- Shell Width: 73 mm
- Axle Length: 113 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55C13

BSA 73x118:
- Threads: BSA
- Shell Width: 73 mm
- Axle Length: 118 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55C18

BSA 73x122.5:
- Threads: BSA
- Shell Width: 73 mm
- Axle Length: 122.5 mm
- Contents: incl. crank bolt
- Factory Number: E-BBUN55C22

ITA 70x110:
- Threads: ITA
- Shell Width: 70 mm
- Axle Length: 110 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55I10

ITA 70x113:
- Threads: ITA
- Shell Width: 70 mm
- Axle Length: 113 mm
- Contents: not incl. crank bolt
- Factory Number: E-BBUN55I13

ITA 70x115:
- Threads: ITA
- Shell Width: 70 mm
- Axle Length: 115 mm
- Contents: incl. crank bolt
- Factory Number: E-BBUN55I15

Contents:


- 1 x Shimano BB-UN55 bottom bracket, incl. bearings


Models:

in stock 2 to 7 days up to 10 days up to 20 days
  • universal/BSA 68x107
    11.76€
  • universal/BSA 68x110
    10.92€
  • universal/BSA 68x113
    11.76€
  • universal/BSA 68x118
    11.76€
  • universal/BSA 73x113
    12.60€
  • universal/BSA 68x115
    11.76€
  • universal/BSA 73x110
    12.60€
  • universal/ITA 70x110
    12.60€
  • universal/ITA 70x115
    12.60€
  • universal/BSA 73x118
    12.60€
  • universal/ITA 70x113
    12.60€
  • universal/BSA 68x122.5
    11.76€
  • universal/BSA 68x127.5
    11.76€
  • universal/BSA 73x122.5
    11.76€

Customer Reviews (28)

4.6

You have questions regarding a product?

+49 2405.450045 +49 2405.450045

Customer Reviews (28)

4.6/5.0
5
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1
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Give us your opinion on this product.

by Cosmin U.  on 26.05.2018
verified purchase
0 of 1 customers found this review helpful.

+Well built. Smooth.
-Heavy. I was expecting to be like BB-UN 85 (with a hollow axel).

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by Aleksey K.  on 03.05.2015
verified purchase
4 of 4 customers found this review helpful.

Конструкция очень понравилась. От грязи очень хорошо защищена.

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by Jari T.  on 01.11.2014
verified purchase
1 of 1 customers found this review helpful.

Solid bottom bracket for cheap price. I have this installed in two of my bikes. Works nicely in any weather from +30 to -30 C.

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by Jens J.  on 03.03.2014
verified purchase

no nonsense, just about doing the job over and over again. Nice, old style craftmanship fra Shimano.

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