Click to expand Tap to zoom SKU EBBUN300B13X-3 Shimano BB-UN300 Square Type Bottom Bracket by SHIMANO Original price Rs. 1,180.00 - Original price Rs. 1,180.00 Original price Rs. 1,180.00 Rs. 1,180.00 - Rs. 1,180.00 Current price Rs. 1,180.00 | / Choose a variant 68x107 mm - Rs. 1,180.00 68x110 mm - Rs. 1,180.00 68x113 mm - Rs. 1,180.00 68x115mm(D-H) - Rs. 1,180.00 68x117.5 mm - Rs. 1,180.00 68x118mm(XL118) - Rs. 1,180.00 68x122.5 mm(D-NL) - Rs. 1,180.00 68x122.5 mm (LL123) - Rs. 1,180.00 73x118 mm - Rs. 1,180.00 73x122.5 mm - Rs. 1,180.00 Size 68x107 mm 68x110 mm 68x113 mm 68x115mm(D-H) 68x117.5 mm 68x118mm(XL118) 68x122.5 mm(D-NL) 68x122.5 mm (LL123) 73x118 mm 73x122.5 mm Quantity Add to cart Chat for Product Availability Upgrade your drivetrain with the Shimano BB-UN300 Square Taper Bottom Bracket, engineered for smooth pedaling, long-lasting durability, and dependable performance. Designed with sealed cartridge bearings, the BB-UN300 minimizes maintenance while providing efficient power transfer for road bikes, mountain bikes, hybrid bikes, and commuter bicycles. Its robust steel spindle and precision bearings ensure reliable operation in all riding conditions, making it an excellent replacement or upgrade for bikes using square taper cranksets. Key Features Genuine Shimano BB-UN300 square taper bottom bracket Sealed cartridge bearings for smooth, maintenance-free performance Durable steel spindle for reliable power transfer Low-friction design improves pedaling efficiency Corrosion-resistant construction for long service life Easy installation and dependable everyday performance Suitable for road, MTB, hybrid, trekking, and city bikes Benefits Smooth and efficient pedaling performance Maintenance-free sealed bearing design Excellent durability for everyday riding Reliable Shimano quality and precision Compatible with most JIS square taper cranksets Technical Specifications Brand: Shimano Model: BB-UN300 Product Type: Square Taper Bottom Bracket Bearing Type: Sealed Cartridge Interface: JIS Square Taper Shell Width: 68mm / 73mm (varies by model) Axle Length: Multiple options available Thread Type: BSA English Thread Recommended Use: Road, MTB, Hybrid, Trekking & Commuter Bikes