We recently received a range of Trek, Bosch equipped electric bikes. We are no stranger to electric bikes in the shop but we have never really stocked electric assist mountain bikes.
Yesterday I took out the Powerfly+ 5 which retails for £2000. This is Treks entry level hardtail mountain bike, it still has the 400Wh battery as do all the Treks but it has the lower torque Active Cruise motor rather than the Performance Cruise on the higher models, but I still had a blast on the bike!
The Trek marketing strapline is:
‘Powerfly+ lets you expand your boundaries. It combines the dynamics of 29ers with the reliable propulsion of RIDE+ electric bike technology, turning every mountain into a hill and every ride into pure enjoyment. End of the trail? Not for you! Especially if you’re searching for a bike with extra power to let you go even further. With its universal range of application, the Powerfly+ takes you everywhere – and a little beyond.’
A spec overview of the bike
- Frame. Alpha Gold aluminium 29er frame w/semi-integrated head tube, shaped and formed tubing, independent seatstays and balanced geometry
- Front Suspension. RST Aerial 29 RL w/air spring, w/remote lockout, TnL cartridge, custom G2 geometry w/51mm offset, 100mm travel.
- Deore shifter, SLX shadow rear mech.
But the really interesting part of the bike is the electrical components
- Battery. Bosch Power Pack 400Wh, down tube battery
- Controller. Bosch Intuvia Active w/remote
- Motor. Bosch Active Cruise
After fully charging the battery the head unit reads 89 mile range in the Eco mode, Eco is the most efficient setting offering a little assistance followed by Tour, Sport and Turbo. As each level is selected the range is adjusted to reflect in the increase in power usage but obviously it can then differ according to the amount of power you put into the pedals and then of course once you throw in some hills!
I wanted to test this bike out as a mountain bike and not be precious about the electronics.
I also wanted to test the range on the bike using a mix of the different assistance levels after 30 miles I took some pictures of the head unit and selected the different assistance levels to give me a rough range figure.
The assistance levels are on the right of the screen with the estimated range levels on the lower half of the screen.
I must admit to using to turbo mode to blast up hills and to get up a technical ascend that normal catches me out, I was pleased with the amount of power still left in the battery. The motor unit measures your pedalling up to 1000 times a second, measuring cadence, speed and the power you are putting into the pedals and decides how best to support your pedalling. Its not like the electric bikes of old that as soon as you start pedalling it pushes the bike forward. I found it easy to forget I was riding an electric bike, at times I switched off the assistance to make sure it was still working.
Its an amazing bike. I was genuinely blown away buy how intelligent the assistance was. There was a section on the trail where you have to go through a gate and I found myself scooting along with one foot clipped in and the other on the ground. You would think that the Bosch drive would be trying to urge you on but it just doesn’t. I assume its because of the sensors not picking sufficient speed or cadence.
The Powerfly+ is a versatile bike, I think it will help riders who aren’t fit to get out and have fun. Trail centre riders to do another lap, riders who want the confidence and comfort to ride on the road with a mountainbike but don’t want a knobbly tyre robbing them of speed. It really does make you think differently, it opens up the possibilities. Want to get to work on your bike but you feel its just a little too far? Mornings can be a rush at the best of times so when you are rushing to work use Turbo and on your way home put it in Eco.
I live 12 miles from the train station and this will be my new ride to get me to the train on time. I can carry loads of kit with me, laptop, change of clothes, lunch and not worry about all the weight because the Bosch assistance will be gently helping me along.
The speed is limited to 25 KPH which is roughly 15.5 MPH.
When I have a few more miles done I will update this blog, but the first ride has left me wanting to get back out there and tackle some of my favourite trails on it.
This is a link to the Powerfly+ 7 as Trek don’t have an image yet of the 5 that I tested. We are the first shop in the UK to get hold of these bikes.