Shimano-BB-UN300-Bottom-Bracket-68mm-Square-Taper-JIS-Bottom-Bracket-CR3488-Bicycle-Bottom-Brackets

SKU: CR3488

Shimano BB-UN300 Square Taper JIS 68x122.5mm BSA Bottom Bracket 47.5mm Chainline

Shimano
$19.17
$19.17 $23.95
Sale Sold out
/
Free Shipping All Day, Every Day
BFCM Sale! Get an Extra 10% Off This Item at Checkout

Fast & Free Shipping

Chat with Support for Expert Advice

Manufacturer Warranty

This is a pre order item. We will ship it when it comes in stock.
Specifications

Spindle Length122.5
BB/Frame InterfaceEnglish
Bottom Bracket Shell I.D.1.37
Spindle Interface TypeSquare Taper JIS
BB Shell Width (mm)68 mm

Shimano BB-UN300 Square Spindle Bottom Brackets

  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
  • 47.5mm chainline
Description

Shimano BB-UN300 Square Spindle Bottom Brackets

  • Fits JIS square-taper cranksets
  • Crankarm fixing bolts sold separately
  • Hollow spindle
  • 47.5mm chainline

Customer Reviews

Based on 20 reviews
85%
(17)
0%
(0)
15%
(3)
0%
(0)
0%
(0)
C
Charlie

I purchased this shimano bottom bracket after trying 2 different cheap units that didn't last. I'm extremely happy as the operation is whisper quiet. I'll definitely buy this again if needed in the future.

Also deliver was as expected.;

S
Satisfied User

This product was exactly as in the description and arrived on time. The installation instructions were clear and easy to follow. After installation was complete IÔøΩve done a few spins and it is working perfectly!

S
Satisfied User

This product was exactly as in the description and arrived on time. The installation instructions were clear and easy to follow. After installation was complete IÔøΩve done a few spins and it is working perfectly!

S
Satisfied User

This product was exactly as in the description and arrived on time. The installation instructions were clear and easy to follow. After installation was complete I’ve done a few spins and it is working perfectly!;

S
Some Programmer

I bought this to replace the troublesome cup and cone bottom bracket on my Schwinn GTX 3 and it's a big improvement. The bike pedals noticably smoother now and no longer clicks under load.

123