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Shimano BB-UN300 Square Taper Bottom Bracket

4.85 product ratings
sdj-sports (295547)
99.7% positive Feedback
Price:
£14.89
Free delivery in 1-2 days
Estimated between Sat, 10 May and Mon, 12 May
Ships today if you order in the next Ships today if you order in the next 2h 32m
Returns:
30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Condition:
New
Select
68 mm
73 mm
Select
113 mm (Out of stock)
123 mm
The Shimano UN300 Bottom Bracket is a good quality BB for traditional chain sets. Genuine Shimano UN300 Bottom Bracket. Shimano Bottom Bracket UN300 68 x 113mm Square Taper BB British Thread. Narrow body allows clearance for cable routing under the bottom bracket.

About this product

Product Identifiers

BrandShimano
MPNBB-UN300
GTIN4550170622190
UPC4550170622190
ModelBB-UN300
eBay Product ID (ePID)24043732162

Product Key Features

Spindle TypeSquare Taper - JIS
Compatible BrandShimano
Shell Width73 mm
Bottom Bracket Shell TypeBSA (English)
Compatible Bike TypeUniversal, Mountain Bike
ColourMulticoloured
Part TypeBottom Bracket

All listings for this product

Buy it now
New
Shimano UN300 Bottom Bracket Bike Cycle Bicycle BB Square Taper Sealed Cartridge
item 1 Shimano UN300 Bottom Bracket Bike Cycle Bicycle BB Square Taper Sealed Cartridge
£14.89
Free postage
Shimano Bottom Bracket UN300 73 x 123mm Square Taper GRADE C
item 2 Shimano Bottom Bracket UN300 73 x 123mm Square Taper GRADE C
£14.89
Free postage
Shimano Bottom Bracket UN300 73 x 123mm Square Taper BB British Thread GRADE C
item 3 Shimano Bottom Bracket UN300 73 x 123mm Square Taper BB British Thread GRADE C
£14.89
Free postage
Shimano Bottom Bracket UN300 Square Taper British Thread
item 4 Shimano Bottom Bracket UN300 Square Taper British Thread
£14.89
Free postage
Shimano BB-UN300 Bottom Bracket Square Taper Sealed Cartridge 68 × 123mm
item 5 Shimano BB-UN300 Bottom Bracket Square Taper Sealed Cartridge 68 × 123mm
£16.99
Free postage
Shimano BB-UN300 Bottom Bracket Square Taper Sealed Cartridge 68 × 117.5mm
item 6 Shimano BB-UN300 Bottom Bracket Square Taper Sealed Cartridge 68 × 117.5mm
£16.99
Free postage
Shimano BB-UN300 Bracket Square Taper Sealed Cartridge 68 × 117.5mm MTB Bicycle
item 7 Shimano BB-UN300 Bracket Square Taper Sealed Cartridge 68 × 117.5mm MTB Bicycle
£16.99
Free postage
Shimano BB-UN300 Square Taper Bottom Bracket 73mm x 123mm
item 8 Shimano BB-UN300 Square Taper Bottom Bracket 73mm x 123mm
£17.99
Free postage
Shimano BB-UN300 bottom bracket British thread, 73 - 122.5 mm (LL123)
item 9 Shimano BB-UN300 bottom bracket British thread, 73 - 122.5 mm (LL123)
£21.66
Free postage
Shimano BB-UN300 Bicycle Bottom Bracket - British Thread - Various Sizes
item 10 Shimano BB-UN300 Bicycle Bottom Bracket - British Thread - Various Sizes
£21.99
Free postage
Shimano BB-UN300 Square Taper Bottom Bracket
item 11 Shimano BB-UN300 Square Taper Bottom Bracket
£20.48
+ £2.94 postage
Shimano BB-UN300 bottom bracket British thread 73 - 122.5 mm (LL123)
Almost gone
item 12 Shimano BB-UN300 bottom bracket British thread 73 - 122.5 mm (LL123)
£19.99
+ £3.95 postage
Bottom Bracket to suit Scott Aspect Mountain bike Shimano BB-UN300 Square Taper
Last one
item 13 Bottom Bracket to suit Scott Aspect Mountain bike Shimano BB-UN300 Square Taper
£23.99
Free postage
Shimano BB-UN300 Square Taper Bottom Bracket. 113x68mm 113 X 68
item 14 Shimano BB-UN300 Square Taper Bottom Bracket. 113x68mm 113 X 68
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 113x73mm. 113 X 73mm
item 15 Shimano BB-UN300 Square Taper Bottom Bracket 113x73mm. 113 X 73mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 115x68mm 115 X 68mm
item 16 Shimano BB-UN300 Square Taper Bottom Bracket 115x68mm 115 X 68mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 73x118mm 73 X 118
item 17 Shimano BB-UN300 Square Taper Bottom Bracket 73x118mm 73 X 118
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 118mm X 68mm
item 18 Shimano BB-UN300 Square Taper Bottom Bracket 118mm X 68mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 123mm X 73mm
item 19 Shimano BB-UN300 Square Taper Bottom Bracket 123mm X 73mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 123mm X 68mm
item 20 Shimano BB-UN300 Square Taper Bottom Bracket 123mm X 68mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 127 X 68mm
item 21 Shimano BB-UN300 Square Taper Bottom Bracket 127 X 68mm
£21.52
+ £3.45 postage
Shimano BB-UN300 Square Taper Bottom Bracket 68mm X 127mm
item 22 Shimano BB-UN300 Square Taper Bottom Bracket 68mm X 127mm
£21.52
+ £3.45 postage
Shimano Innenlager BB-UN300 73-122.5mm Vierkant BSA EBBUN300C23X
item 23 Shimano Innenlager BB-UN300 73-122.5mm Vierkant BSA EBBUN300C23X
£13.89
+ £17.90 postage
SHIMANO Square bottom bracket cartridge axle BB-UN300 BSA 73-123 MM (LL123)
item 24 SHIMANO Square bottom bracket cartridge axle BB-UN300 BSA 73-123 MM (LL123)
£46.45
Free postage
SHIMANO Square bottom bracket cartridge axle BB-UN300 BSA 73-123 MM (LL123)
item 25 SHIMANO Square bottom bracket cartridge axle BB-UN300 BSA 73-123 MM (LL123)
£46.45
Free postage
listings for this product

Ratings and reviews

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4.8
5 product ratings
  • 4 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • by jedders2004
    04 Jan, 2022

    Great product from Shinano

    Really nice quality item. I think this will see me or my bike out! It's Shimano so I dont need to say any more.

    Verified purchase: YesCondition: New

  • by mercedesdavid2005
    12 Aug, 2022

    Good seals. Spins nice and quietly

    Bought this to replace the BB on my 2021 Specialized Rockhopper. This unit is by far better quality than the one that came on the bike. It has more seals to keep grime out. It spins so smoothly and unlike the one I’m replacing is ultra quiet.

    Verified purchase: YesCondition: New

  • by mariuspawli_0
    11 Feb, 2022

    Replacement Bottom Bracket

    The BB was the same type as the one originally in the bike, so it is a perfect replacement.

    Verified purchase: YesCondition: New

  • by jbax9388
    07 Aug, 2022

    Branded Product

    a name you can trust, only down side is, it is not supplied with new bolts

    Verified purchase: YesCondition: New

  • by hilste-wivbzswt
    13 Oct, 2021

    Asexpected

    Verygood

    Verified purchase: YesCondition: New

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