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 theyfound 115% (from the top centre) to be the optimum.
This shrank the dead spot suitably and gave the same flawless chain retention as their 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 crank rotation sooner.
The benefit of this is twofold; increased gearing on the downward stroke and faster crank speed to get the crank propelled back around into the power phase continually. This is a significant gain because virtually all studies into pedalling performance suggest that a minimum 80% of your power comes from the downward motion. Mainly because much larger muscle groups are used for this motion. The physics sorcery adds extra power in the downwards stroke for no extra effort by reducing the dead spot and adds a bigger gear for the now larger power phase in the downward stroke. Win, win.
Features
Thick Thin Tooth Profile
10, 11 and 12 Speed Compatible
115 Degrees of Ovality
Fully CNC Machined from 7075 Aluminium
Specifications
| Weight | 0.084 kg |
|---|---|
| Dimensions | 200 150 10 mm |
| Size | 30T, 32T |
| Price Match | Contact Us Here |
|---|---|
| Easy Returns | Info Here |
| Payment Options | Interest FREE Options Over $30 |
| Fast Shipping | Check Rates Here |
| Pushys ID | 154932 |
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 theyfound 115% (from the top centre) to be the optimum.
This shrank the dead spot suitably and gave the same flawless chain retention as their 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 crank rotation sooner.
The benefit of this is twofold; increased gearing on the downward stroke and faster crank speed to get the crank propelled back around into the power phase continually. This is a significant gain because virtually all studies into pedalling performance suggest that a minimum 80% of your power comes from the downward motion. Mainly because much larger muscle groups are used for this motion. The physics sorcery adds extra power in the downwards stroke for no extra effort by reducing the dead spot and adds a bigger gear for the now larger power phase in the downward stroke. Win, win.
Features
Thick Thin Tooth Profile
10, 11 and 12 Speed Compatible
115 Degrees of Ovality
Fully CNC Machined from 7075 Aluminium
Specifications
| Weight | 0.084 kg |
|---|---|
| Dimensions | 200 150 10 mm |
| Size | 30T, 32T |