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Square Taper - JIS

julio 22, 2026

Shimano BB-UN300-K Bottom Bracket- 68×117.5mm Spindle,Square Taper, – Chain Case

Shimano BB-UN300 Square Spindle Bottom BracketsFits JIS square-taper cranksets. Crankarm fixing bolts sold separately. Hollow spindle. For chain case. Item Specifications: Spindle Interface Type, Square Taper JIS, Bottom Bracket Shell I.D., 1.37, BB/Frame Interface, English, BB Shell Width (mm), 68 mm, Spindle Length, 117.5, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 22, 2026

Shimano BB-UN300-E Square Taper JIS 68×122.5mm Spindles English Bottom Bracket

Shimano BB-UN300 Square Spindle Bottom BracketsFits JIS square-taper cranksets. Crankarm fixing bolts sold separately. Hollow spindle. For E-Type Front Derailleur. Item Specifications: BB Shell Width (mm), 68 mm, Bottom Bracket Shell I.D., 1.37, Spindle Length, 122.5, BB/Frame Interface, English, Spindle Interface Type, Square Taper JIS, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 22, 2026

Shimano BB-UN300 Bottom Bracket – English, 68 x 115mm Spindle, Square Taper JIS

SHIMANO SQUARE TAPER CARTRIDGE B.B., Square Taper, 68 x 115mm The quality and performance-oriented Shimano BB-UN300 cartridge bearing bottom bracket features a JIS square taper mount and is designed for frames with BSA thread and 68 mm shell width. A stabilizer ensures a constant chain line. BB-UN300 UPC 192790619187 Manufacturer # EBBUN300B15B bb type Square Taper model BB-UN300 size 68 x 115mm spindle JIS Taper inner diameter N/A quantity 1
julio 22, 2026

Shimano BB-UN300 Sealed Bottom Bracket Square Taper BSA 68×113/117.5/123mm

Option: 1, 68×113mm 2, 68×117.5mm 3, 68×123mm —————————————————————————— Note: Some batch with white coating on the left cup —————————————————————————— Model: BB-UN300 Type: Square taper Shell width: 68mm Shell thread: BC1.37" x 24T Axle length: 113mm / 117.5mm / 123mm Adapter material: Aluminum Comes with axle bolts Square taper spindle,easy installation SHIMANO quality/performance bearing square bottom bracket Better chainline stability with chain line stabilizer
julio 22, 2026

Shimano BB-UN300 Square Taper JIS 73x123mm Spindles BSA (English) Bottom Bracket

Shimano BB-UN300 Square Spindle Bottom BracketsFits JIS square-taper cranksets. Crankarm fixing bolts sold separately. Hollow spindle. Item Specifications: Spindle Length, 122.5, BB/Frame Interface, English, BB Shell Width (mm), 73 mm, Spindle Interface Type, Square Taper JIS, Bottom Bracket Shell I.D., 1.37, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us
julio 22, 2026

Shimano BB-UN300 Bottom Bracket – English, 68 x 110mm Spindle, Square Taper JIS

This Shimano BB-UN300 Bottom Bracket is a reliable and sturdy option for your bicycle. It is designed with a 68 x 110mm spindle and a square taper JIS that ensures a secure fit. The bracket is made from high-quality materials and is built to last, making it an ideal choice for cycling enthusiasts. The package dimensions are 5.39 x 1.67 x 1.91 inches and it weighs 0.6 pounds. The bracket is manufactured by Shimano and has a model number of EBBUN300B10X. It is suitable for use with various bicycle models and is available in black color. I ordered the wrong part so it is brand new and in the box. Email any questions.