Cycleops
Legendary Member
- Location
- Accra, Ghana
After reading a review in the equipment review section here on 'Q' rings I thought I would ask the question if there is any benefit in using them. They have been around since the 1890's so are not a new idea. Last tried by Shimano in late eighties but no longer produced as "Biopace". This rather extreme example was from the seventies.