Ventana 29er Hacked with Gates Belt Drive & Shimano Alfine Di2
Cyclepath NW bike shop in Portland, OR, and customer Nelson Snyder wanted to create the “ultimate Pacific Northwest bike” for offroad riding during the winter.
So, they started with his Ventana 29er hardtail mountain bike and added a Gates Belt Drive and Shimano Alfine Di2 11-speed. As the parts arrived, they realized that it would take some serious hacking to get the Gates cog to work with the Alfine hub. CP’s Michael Jellinek told us what had to be done:
“We had to custom machine down the motor unit, the belt cog, and custom space the internals of the hub and modify the bb/belt-ring spacing to make it work. It was a good two days of solid trial and error – but a fun winter project in rainy Portland! It turned out rock-solid.”
A bit scary considering the price point of the electronic internally geared hub, but always thrilled to see shops and riders make solutions for their customers and local conditions.
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They admit there’s a bit of cleaning up to do for the wiring, which they’re planning to do when the Di2 internal battery becomes readily available.