Rubbee X 4+

After doing the app update it fails to see the sensor. Clearly the power unit is communicating with a sensor because it behaves normally on a bike ride. Just the app is having trouble seeing the sensor. You can change speeds etc. via the app but apparently it never sees the sensor. I ended up changing the battery because I thought the sensor battery may have failed. Also, if you have a shock absorbing seat column it’s hard to get the rhino clamp high enough on the seat column to allow The Rubby piston to extend far enough. What happens is when you have a big bump the Rubbee power unit bounces up and the piston hook reengages so that the rugby power unit is literally just riding along the tire without any pressure from the piston. The result is a lack of sufficient engagement between the drive wheel and the bike tire. There is a reduction in power applied to the tire. I can see how on normal non-compression see columns it would be fine. On level terrain without many bumps it works wonderfully well. Would be nice to be able to somehow address this issue.

I’ve waited for this product since it was kicked start in 2014. Such a a great concept! Unfortunately my user experience is undeniable negative. I’m returnIng my RubbeeX after I speak to customer service. My issue is the software lags on communicating with motor unit. It becomes stuck on “RubbeeX Configuring”. I think this happens when the motor momentarily slips from making contact with the tire. After app becomes stuck your officially dragging the 8 kg of dead weight. Provides zero propulsion. Avoid the app trying the sensor. I’m not really what ruined my unit. It could also be defective. Just sharing my user experience since there is really not much review out there.

There’s no way this product is anywhere close to ready for production. I’ve only gone on a few rides and it breaks down and/or overheats every time, the last time breaking completely and I had to sent the unit back for repair on only the 4th ride! Every time it breaks the company issues a bug fix, but then I have new issues the next time. The power is inconsistent and doesn’t provide any assistance going up hills. I’ve asked the company numerous times for a refund, but they flat out ignore me every time. Avoid this product and this company, it’s not much more money to just buy an eBike. I basically took a full loss on this.