THUN Shorty-ML SL Square Taper Bottom Bracket, 68 x 107.5mm

• Material: Cold forged and Zinc coated steel spindle
• Sealed bearings
• Square tapered
• Shell Width: 68mm
• Carbon composite: Sleeves and cups

For more than 100 years Thun has been producing and distributing components for bicycles. The family business particularly focuses on transmission parts such as bb-sets and sensor technology for e-bikes. With highly efficient processing, Thun produces more than 50,000 units per day. Thun is distributed worldwide and has become one of the world’s market leaders due to its superior technology.

These universal bottom brackets are designed to fit most makes. With a wide range of measurements to suit most lengths. Suitable for a range of cycling disciplines like City, Trekking or Mountain biking.

A carbon composite is implemented into these, meaning no grease is needed to attach to your frame, and will work exactly how you want it to, this also means no seizing. Perfect for frames with damaged threads, these bottom brackets attach with ease.



Thun recommends NOT greasing the bottom bracket as this could swell the plastic and cause issues.

Technical Specifications * Material: Cold forged and Zinc coated steel spindle
* Carbon composite: Sleeves and cups
* Sealed bearings
* Square tapered
* Cups: BSA – 1.375 x 24 tpi
* Spindle length: 108K/107.5mm
* Weight: 265 grams
* Supplied with M8 Hex key crank bolts
Item Length: 137
Part Type: Bike Spares
Size: ‎68 x 107.5mm
Type: Bottom Brackets

Material: ‎Carbon composite, Zinc coated Steel

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.