Osymetric Chainrings Shimano Dura Ace 9000 Ultegra 6800 105 5800 Road TT Tri

OSYMETRIC CHAINRING SET Shimano Dura Ace 9000 Ultegra 6800 and 105 5800 model 4 Bolt Crank Sets. TOUR DE FRANCE SPECIAL – LIMITED STOCK. Osymetric Chainrings Improve Your Pedalling Efficiency. Get the best out of your pedalling power by using the increasingly popular Osymetric chainring set, for Shimano 4 bolt crank sets. The genuine Osymetric […]