billfred
New member
Have you tried Optygen?
I read about it in a cycling magazine and had documented performance results. I have tried and can tell the difference but not consistent enough to give you any results. It is worth a try.
Check out this website:
http://www.performancebike.com/shop/sub_cat.cfm?subcategory_id=2413
I read about it in a cycling magazine and had documented performance results. I have tried and can tell the difference but not consistent enough to give you any results. It is worth a try.
Check out this website:
http://www.performancebike.com/shop/sub_cat.cfm?subcategory_id=2413