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  2. Parts
  3. B/Bracket Threaded
  4. Bsa Threaded 34Mm
  5. Shimano Un300
Shimano
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How to Buy

In-Store

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Online

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Delivery Information
Mainland UK delivery for standard orders when you spend £20
Special order delivery typically takes 4-5 working days

£7.50

Mainland UK delivery for standard orders when you spend £70
Special order delivery typically takes 4-5 working days

FREE

Mainland UK delivery for large orders when you spend £1,000
Special order delivery typically takes 4-5 working days

£30.00

Mainland UK delivery for large orders when you spend £300
Special order delivery typically takes 4-5 working days

£45.00

Mainland UK delivery for standard orders when you spend £20
Delivery takes 2-3 working days

£7.50

Mainland UK delivery for standard orders when you spend £70
Delivery takes 2-3 working days

FREE

FREE reserve and collect
Available now: reserve online and collect today or tomorrow

FREE

FREE click and collect
Available now: pay online and collect in store within 5 working days

FREE

Mainland UK delivery for large orders when you spend £1,000
Delivery takes 2-3 working days

£30.00

Mainland UK delivery for large orders when you spend £300
Delivery takes 2-3 working days

£45.00

Not all methods may be available for each option. Select an option to show the fulfilment methods available for that option.

Select & Buy

Shimano Un300 115MM X 68 Square Taper
Shimano Un300 115MM X 68 Square Taper
MPN: BBUN300B15

Out of stock

£24.00

Shimano Un300 110MM X 68 Square Taper
Shimano Un300 110MM X 68 Square Taper
MPN: BBUN300B10

Available

£24.00

Shimano Un300 118MM X 68 Square Taper
Shimano Un300 118MM X 68 Square Taper
MPN: BBUN300B18

Available

£24.00

Shimano Un300 118MM X 73 Square Taper
Shimano Un300 118MM X 73 Square Taper
MPN: BBUN300C18

Available

£24.00

Shimano Un300 127MM X 68 Square Taper
Shimano Un300 127MM X 68 Square Taper
MPN: BBUN300B27

Available

£24.00

Shimano Un300 113MM X 68 Square Taper
Shimano Un300 113MM X 68 Square Taper
MPN: BBUN300B13

Available

£24.00

Shimano Un300 122MM X 68 Square Taper
Shimano Un300 122MM X 68 Square Taper
MPN: BBUN300B23

Available

£24.00

Shimano Un300 107MM X 68 Square Taper
Shimano Un300 107MM X 68 Square Taper
MPN: BBUN300B07

Available

£24.00

Shimano Un300 122.5MM X 73 Square Taper
Shimano Un300 122.5MM X 73 Square Taper
MPN: BBUN300C23

Available

£24.00

Shimano Un300 118MM X 68 XL Square Taper Chaincase
Shimano Un300 118MM X 68 XL Square Taper Chaincase
MPN: BBUN300KB18

Available

£24.00

Shimano Un300 113MM X 73 Square Taper
Shimano Un300 113MM X 73 Square Taper
MPN: BBUN300C13

Available

£24.00

Description

  • 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
  • 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

Specification

Miscellaneous
Model Year
Model Year
2023
Get in Touch

Transition Cycles
44B Castle Road
BEDFORD
MK40 3PJ

  • 01234 351154
Transition Cycles
Customer Services

Transition Cycles Limited is a company registered in England & Wales with company number 06566083.
Registered office: 15 Grove Place, BEDFORD, MK40 3JJ. VAT number: 933 3985 95.

Transition Cycles Limited acts as a credit broker and only offers credit products from Secure Trust Bank Plc. trading as V12 Retail Finance. Transition Cycles Limited is authorised and regulated by the Financial Conduct Authority. Our registration number is 793340. Credit provided subject to age and status.

©2024, Transition Cycles Limited.

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