An FSA bottom bracket for a BSA 68mm threaded frame shell, taking a 19mm MegaExo crank spindle.

Highlights

  • Frame shell: BSA 68mm threaded
  • Crank spindle: 19mm MegaExo
  • Sleeve: Composite, Di2 compatible, adjustable

Details

MegaExo is FSA's external-bearing bottom bracket system. The bearings sit in threaded cups outside the shell, which allows a larger spindle and bearings for a stiff, durable crank interface.

Fit and compatibility

It suits a BSA 68mm threaded frame shell and a 19mm MegaExo crank spindle. Measure the shell width and check whether it's threaded or press-fit before you order. If you're changing crank standards at the same time, check that the new crank's spindle length and chainline suit the frame as well.

Fitting

Bottom brackets need the right tools and a clean, properly prepared shell, and press-fit cups must go in square. Our workshop can fit it and check the crank's preload and play at the same time.

Not sure what shell your frame has? Send us the frame model or a photo of the bottom bracket area and we'll confirm the fit before you order.

FSA warrants its products against defects in materials and workmanship for two years from the original purchase, for the original purchaser. Bearings, seals and wave washers are wear parts, so they're covered for manufacturing defects only, not wear.

For a warranty claim, return the item to Tune Cycles with your proof of purchase and we'll manage the claim for you. FSA products come with guarantees that can't be excluded under the Australian Consumer Law, and this cover is in addition to those rights.

  • Frame shell: BSA 68mm threaded
  • Crank spindle: 19mm MegaExo
  • Sleeve: Composite, Di2 compatible, adjustable
Frame shellBSA 68mm threaded
Crank spindle19mm MegaExo
SleeveComposite, Di2 compatible, adjustable
SKU BPW-FSA-0033
Model # FSA-0033
Barcode # 4710636257490
Brand FSA