Grin Technologies

I purchased the Grin All Axle Rear Motor/CA3/Phaserunner combo. Initially I had lots of issues with power instability for several months and was very disappointed. I thought either the motor or the controller or the display was having issues. I spent several months with support, lots of emails and troubleshooting. In the end I discovered that when I installed the hub motor on my Azub Ti-Fly X that I had accidentally twisted and slightly sheared the motor cable. This is mainly because the...

Deeply disappointed in the recent service from Grin Technologies. As a long-term advocate in the Calgary DIY scene and a Cirkit bike builder, I’ve always stood behind Grin. Today, that ends. I have four Grin controllers and have referred countless customers through Hilleater, but Grin just denied a warranty claim on a physically perfect Frankenrunner because of a 3-day (72-hour) warranty overlap. The Facts: Software Failure: During a guided technical session with Miguel using the official Pha...

While I like my e-bike components purchased several years back, I can’t say the same about the lights they have on their site and the customer service. Twice I’ve purchased lights from Grin and both had problems right out of the box. Both times Grin stated I’d have to pay for return shipping as per “warranty”. I really don’t consider receiving a faulty product a warranty issue that would require the customer to pay for returning a defective item. Hayley directed me to their warranty page ...

I bought a kit and it doesn't work. A Gmac with PhaseRunner and CA3 with spokes costing $1,500. I've sent numerous emails to support, but I haven't received a response or a solution for three weeks. I received one email telling me to reset the system to default, but that didn't change the problem. They sent me a defective e-bike kit and they don't care. I haven't received a replacement or any help. I'm simply left alone with a defective e-bike kit that cost $1,500. Add this two months later:...

I bought a cycle analyst v2 almost 10 years ago. It still works great. I just upgraded to a cycle analyst v3 and the wire colours match the 10 year old v2. The products work for someone who wants to plug and play, they also encourage people to dig deeper and expand on the available options