Burgtec Shimano Direct Mount Oval Thick Thin Chainring Stock Item:Burgtec Oval Shimano Direct Mount Thick Thin Chainring ­ Burgtec Black ­ 30T AX-a Advanced Extra Alpha Cord:

AX-a Advanced Extra Alpha Cord: This compound has the same low rolling resistance as the Ultima compound

The Zippa is compatible with 32T – 38T chainrings and can be fitted via ISCG05 or BB (via external adaptor)

The perfect

the injection-molded nylon composite sole is engineered to be moderately stiff and plenty light

Maximum flexibility when drinking on the go

Burgtec Shimano Direct Mount Oval Thick Thin Chainring Stock Item:Burgtec Oval Shimano Direct Mount Thick Thin Chainring ­ Burgtec Black ­ 30T AX-a Advanced Extra Alpha Cord:Does a mechanical advantage of increased gearing sound Interesting? If so, read on. Through research and testing of many different prototypes with varying amounts of Ovality we found 115% (from the top centre) to be the optimum. This shrank the dead spot suitably and gave the same flawless chain retention as our round rings. The shortening of the dead spot on the top and bottom of the power curve allows you to get back into the power phase of your