Null Winds has been dedicated to lessening the soul-killing effects of head and cross-winds on your ride. After creating an upper wheel fairing that lessens the drag from spokes “fanning” the wind against your efforts resulting in a claim of 20% more speed for a given effort, inventor Garth Magee has just launched a Kickstarter to fund tooling for his newest weapon against drag, the Spoke Fin. This patent pending invention snaps onto the round spokes of your existing wheelset and swivels freely to go with the aerodynamic flow – boasting a drag coefficient reduction of more than 50% in both headwinds and crosswinds. Learn how these little fins will stop your next windy ride from being such a drag after the jump…
Not quite the half-bladed, half-round spoke concept we saw at Interbike, the Spoke Fin is a snap-on tail fin for the outer end of your spoke, with a larger fairing for the exposed nipple. While the traditional bladed spoke helps riders to cut through direct or near-direct headwinds, in the case of a crosswind its profile causes drag due to flow separation turbulence across the forward facing blade rigid profile. The Spoke Fin seeks to improve upon the idea of a traditional rigid bladed spoke by swiveling with crosswinds while the wheel is in motion, thereby lessening the separation turbulence.
The Spoke Fin model going to tooling features a break-away retaining ring to keep the fin snug against the rim. If you act soon, you can get your own set of 64 Spoke Fins in your choice of black or red nylon for only $25 delivered by Summer. Get your aero on at Kickstarter.
