New O.E.M. Triumph & BSA Unit Singles Duplex Primary Chain
A Duplex primary chain used primarily on vintage Triumph and BSA unit single motorcycles.
Key Technical Specifications:
- Chain Type: Duplex (double row)
- Length: 70 links
- Pitch/Dimensions: 3/8" x 7/32"
- Design: Traditionally an "endless" chain, meaning it does not feature a master link as part of its original equipment manufacturer (OEM) specification.
Fitment:
- Fits most 250 & 350 BSA Unit Singles from 1959-1973
- Triumph 250 Unit Singles (Excluding Triumph Cub) (TR25W Trophy, T25T, Etc) from 1968-1972