This is a landing page for people who are relatively fresh to DIY ebikes and are thinking about doing a conversion. It outlines what the conversion process entails, and provides multiple links to different parts of our website that you really should read and understand before contacting Grin with further questions.
We have a few different types of conversion kit available for any given hub motor. Barebones systems for a basic throttle-only setup, Superharness systems for the addition of pedal sensors and modern ebike displays, and Cycle Analyst systems for the most customizable feature set.
At Grin we’re known for carrying a wide assortment of hub motor models to address the enormously varied needs and requirements that come up with ebike retrofits. However, the set of choices can also be dizzying. This page summarizes the core features of each stocked hub motor model and where they are most suitable.
Similarly, there are quite a few battery choices available, in different voltages, form factors, and capacities. This page goes over the process of selecting the right battery model in our catalog for the needs of your particular project.
Most ebikes these days offer some form of automated pedal control (PAS = Pedal Assist System), where the motor is powered in response to you pedaling the cranks and not just from a throttle on the handlebar. Here we summarize both the Cadence based and Torque based PAS sensors available for all the Grin kits.
Grin primarily focuses on supplying parts to DIY builders and ebike enthusiasts who will install the parts themselves, and we have extensive documentation and videos showing that process. But for local customers in Vancouver we also offer retrofit services where you can drop off your bike and have our staff do a professional retrofit with Grin hardware.
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