Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes. Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370" x 24tpi thread. Crank bolts are not included.
Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes. Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370" x 24tpi thread. Crank bolts are not included.
in 73 offers
Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes. Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370" x 24tpi thread. Crank bolts are not included.
Successor to the UN26 and UN55 series, this component covers a wide range of applications from Touring and City bikes to older Road and Mountain bikes. Suitable for traditional square mount chainsets, featuring a 68mm shell with BSA (English) 1.370" x 24tpi thread. Crank bolts are not included.
Size
Last updated at 05/11/2025 19:33:57
Shimano Square Type Bottom Bracket 68 x 122.5mm w-o Bolts - BB - UN300
Delivery between 8–18 Nov $12.94
Shimano BB-UN300 Bottom Bracket 68 x 107mm without Fixing Bolt
Delivery between 11–13 Nov $9.90
Shimano UN300 Square Taper Bottom Bracket 68 x 122.5mm
Delivery between 11–13 Nov $9.90
Shimano BB-UN300 BSA square bottom bracket Version 68 x 122.5 mm
Next-day delivery $42.63
Shimano Bb-Un300 Bottom Bracket 73x122mm w/Fixing Bolt
Delivery between 6–13 Nov $9.99
Shimano BB-UN300 Taper MTB Bottom Bracket British Thread 68mm / 113mm
Free delivery
Shimano BB-UN300 Taper MTB Bottom Bracket British Thread 68mm / 110mm
Delivery between 10–20 Nov $10
Shimano Bottom Bracket, BB-UN300, Square Taper, BSA Threaded - 68x107mm
Delivery between 11–17 Nov $10
See 19 historical offers
Shimano BB-UN300 Square type 122.5mm Bottom Bracket
Delivery $12.95
Shimano Shimano BB-UN300 Bottom Bracket 73x122mm w/Fixing Bolt
Delivery $19.99
Shimano Euro BB Square Taper (115mm)
Delivery between 5–10 Nov $10
Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle [MPN: EBBUN300B22X]
Shimano UN300 Bottom Bracket w/out Fixing Bolts 68x107mm
Delivery between Tue – Fri $9.90
Bottom Bracket BB-UN300 73x113mm (Crank bolts NOT included)
Delivery $15.64
Shimano Bb-UN300 Taper Mtb Bottom Bracket British Thread 68mm / 113mm 68mm Bottom Brackets
Free delivery
SHIMANO Bottom Bracket BB-UN300 Square Type
Delivery between 18–25 Oct $32.40
SHIMANO Bottom Bracket 68BSA EBBUN300B23X BB-UN300 122.5mm (LL123)
Free delivery
originally posted on theoddspoke.com.au
originally posted on balfesbikes.co.uk
originally posted on sigmasports.com
| Shell width | 68mm |
| Axle length | 123mm |
Shimano BB-UN300 Vierkant-Innenlager // BSA 73x123 mm (Alivio)
Shimano Square Type Bottom Bracket 68 x 122.5mm w-o Bolts - BB - UN300
Delivery between 8–18 Nov $12.94
Shimano BB-UN300 Standard Bottom Bracket in Grey
Delivery $15
Shimano BB-UN300 Bottom Bracket 68 x 107mm without Fixing Bolt
Delivery between 11–13 Nov $9.90
Shimano UN300 Square Taper Bottom Bracket 68 x 122.5mm
Delivery between 11–13 Nov $9.90
See 19 historical offers
Miniklio velenas Shimano BB-UN300 BSA 68mm 113 mm
Shimano BB-UN300 Square type 122.5mm Bottom Bracket
Delivery $12.95
Shimano Bb-un300 Square Taper Bottom Bracket
Delivery $15
Shimano Shimano BB-UN300 Bottom Bracket 73x122mm w/Fixing Bolt
Delivery $19.99
Shimano Euro BB Square Taper (115mm)
Delivery between 5–10 Nov $10
Shimano BB-UN300 Bottom Bracket
Free delivery between 5–11 Nov
Shimano BB-UN300 Bottom Bracket - English, 68 x 122.5mm Spindle [MPN: EBBUN300B22X]
Shimano UN300 Bottom Bracket w/out Fixing Bolts 68x107mm
Delivery between Tue – Fri $9.90
Bottom Bracket Shimano BB-UN300 BSA 68mm 117.5mm/68mm
Delivery $30.22
Bottom Bracket BB-UN300 73x113mm (Crank bolts NOT included)
Delivery $15.64
Shimano Bb-UN300 Taper Mtb Bottom Bracket British Thread 68mm / 113mm 68mm Bottom Brackets
Free delivery
Square bottom bracket Shimano BB-Un300 68mm / 110mm
Delivery $54.27
SHIMANO Bottom Bracket BB-UN300 Square Type
Delivery between 18–25 Oct $32.40
SHIMANO Bottom Bracket 68BSA EBBUN300B23X BB-UN300 122.5mm (LL123)
Free delivery
| Shell width | 68mm |
| Axle length | 123mm |
