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Shimano UN55 Square Taper Bottom Bracket

Grey / English (BSA) Square Taper / 68 x 110
$27.05
RRP: $33.14
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Grey / English (BSA) Square Taper / 68 x 113
$27.05
RRP: $33.14
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Grey / English (BSA) Square Taper / 68 x 118
$27.05
RRP: $33.14
Save 18%
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Grey / English (BSA) Square Taper / 73 x 110
$27.05
RRP: $33.14
Save 18%
In stock
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Grey / English (BSA) Square Taper / 73 x 113
$27.05
RRP: $33.14
Save 18%
In stock
Buy Now
Grey / English (BSA) Square Taper / 73 x 118
$27.05
RRP: $33.14
Save 18%
In stock
Buy Now
Grey / English (BSA) Square Taper / 68 x 107
$27.05
RRP: $33.14
Save 18%
In stock
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New, uprated square taper bottom bracket from Shimano.
  • Next Day & World Wide Shipping
  • Excellent Customer Service
  • Buy in Store
Code: BBUN55
  • 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
Free shipping on this item to United Kingdom
  • Estimated delivery transit time: 1-3 days
  • Royal Mail Standard 1-3 Days: $3.01
    Royal Mail standard parcel service, delivered to your door by your local postman. Deliveries are Monday to Saturday, normally 1-2 days transit time.
  • Royal Mail 1st Class 1-2 Days: $3.01
    Royal Mail 1st class parcel service, deliveries are Monday to Saturday with 95% of parcels delivered next working day. Depending on order value the parcel may be send recorded delivery.
  • Royal Mail Special Delivery 1 Day: $6.78
    Royal Mail's premium UK service. Order by 2.30pm for next day delivery by 1pm. Delivery Monday to Friday only, orders from late Friday / Saturday will be delivered the following Tuesday.
  • DPD Next Day 1 Day: $6.78
    The UK's best home delivery service, next day delivery. DPD will email and text (if mobile number is provided) a one hour delivery window. You can text or email back to change the day or have the parcel left with a neighbour if needed. Your parcel is fully traceable at all times.

    Order before 2.30pm Monday to Thurday for next day delivery. Orders from Friday will be delivered on Monday. Orders from late Friday and over the weekend will be delivered on Tuesday.

    Please note we use this service for handbuilt wheels, in this case please allow for the build time.
  • DPD Saturday 1 day: $12.04
    DPD Saturday Delivery. Please order before 2.30pm on Friday for this service.
    Not available to the Highlands and Northern Ireland.
    If your order before 2.30pm on a Thursday the depot will hold onto your parcel and delivery on the Saturday.
  • DPD Saturday Pre 12 Noon 1 Day: $14.99
    DPD Saturday Delivery before 12 Noon. Please order before 2.30pm on Friday for this service.
    Not available to the Highlands and Northern Ireland.
    If your order before 2.30pm on a Thursday the depot will hold onto your parcel and delivery on the Saturday.
General information about our shipping
***** on 11/07/2013

A solid, reliable fit and forget unit. I have had a UN54 on my Giant for around 3 years and it only recently started creaking. As usual, a quality product from the Big S.

***** on 02/05/2013

This Shimano UN55 is a great quality bottom bracket. This is the first replacement bottom bracket for my Trek Pilot road bike it's a good price and was easy to install.(once I'd got the old one out) The unit and the retaining ring are both metal and this was one of my reasons for choosing it. The bike now rides smoothly and quietly, no more crunchy noises! I would reccommend this as it's a well priced product and shimano.

***** on 10/04/2013

A good basic bottom bracket.

Excellent service from Merlin Cycles as usual.

***** on 23/10/2012

Quick delivery, and good comms.

***** on 19/10/2012

Old OEM original VP one was rough as a badgers arse after 5 years, this is so smooth in comparison it's transformed the bike.

***** on 25/07/2012

Replacement square taper BB, no problems at a very good price.

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