Following the discovery of several fake users who were claiming to be legitimate Speedbox users and pushing the product, we advise all users to be prudent when reading any Speedbox recommendations for Bosch motors.
I had one that worked fine on my Trek Rail 7. I just sold the bike so I could get my dream bike....Luna X2 enduro 2000 watt monster.
Any way i am selling my Eplus Bosch Chip - Speed Unlocker for $150. This worked great on my Trek and I could get it up to 30 mph pedaling fast.