The only really ergonomic butterfly wheel out there, available to the masses. Overall experience was positive. The design could be a little better thought out, as it feels a wee bit too narrow, but it fits folding bike like a glove.
Pros:
- 17-degree main hand position on the handlebars
- 3 hand positions are easily achievable, are comfortable.
- Enough room for brake leavers, gear switches, mounting a light.
- Compact
Cons:
- A bit too narrow for maneuvering over rough terrain, ex gravel, lacks a bit leverage
- Main grips are a bit too close to the stem fixation point