Unfortunately, this deal is no longer available
ROCKRIDER E-ST500 Electric Mountain Bike, Grey 27.5" - £799.99 @ Decathlon
312° Expired

ROCKRIDER E-ST500 Electric Mountain Bike, Grey 27.5" - £799.99 @ Decathlon

12
Posted 3rd Dec 2019

This deal is expired. Here are some options that might interest you:

Local trails will be



even more fun with this electric mountain bike. Thanks to the



electrical assistance delivering 42NM of torque coupled with the 420w/h



battery, it'll make light work of hills, while the torque-controlled



power ensures smooth and reliable pedaling. It's comfortable too: check



out the raised position, wide tyres and ergonomic saddle. Add to that



grippy 27.5x2.35 tyres and powerful mechanical disc brakes, and no doubt



you're already sold.


  • Average assisted ride time: 2.5 hours
  • Smooth, natural pedalling thanks to torque-controlled power
  • Easy to control
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12 Comments
What a fantastic bike for the money, decent battery size, XCR forks. Looks really good for £800. Bear in mind that when you get the bike the non-electrical manual will probably state maximum total load 100kg which is what the bike is certified to take which could mean a maximum rider weight of about 75kg allowing for the extra e-bike components etc. The web page states 120kg total load but that conflicts with the information supplied with the bike for many btwin bikes which states only 100kg total load. If you are heavier I would definitely take a screengrab of the web page and email it to yourself so that if the frame fails in a few years you can claim on the frame warranty. Bear in mind it is hard to get mountain bike frame warranties accepted sometimes because mountain bikes are abused anyway. If a weld fails no problem but if a tube cracks through fatigue that is often seen as fair, wear and tear. Ideally you should always only load the bike to the certified weight limits stated either on the frame or in the included manual.

Still looks a fantastic bike for this money though. The disc brakes are mechanical but are decent Hayes brakes and if that is the sacrifice to get decent forks it's worth doing. You can get hydraulic disc brakes as an upgrade later.

Bear in mind that the hub motor does not delivery huge torque. Used off road with serious inclines it will likely not have the power and overheat which will cause it to cut out. Even on long ascents on the road the hub motor may overheat and cut out. This is pretty much normal for such a bike especially if you don't put in much pedalling effort yourself. I see people are complaining about that on the Decathlon site but over-current and high temperatures cutting motor power is normal and many cyclists expect e-bikes to work with very little effort from themselves. 250W and 42nm is not a huge amount of power and torque for a hill despite what the Decathlon sites says.
So it's not worth the money then?
You'll end up with a bike with a knackered motor, unable to sell, and costly repair bill
"with the 420w/h battery"

Watt divided by hour? Really?
Eggbutty03/12/2019 21:02

So it's not worth the money then?You'll end up with a bike with a …So it's not worth the money then?You'll end up with a bike with a knackered motor, unable to sell, and costly repair bill


Which bike are you talking about none of those points seem applicable to this bike?
Eggbutty03/12/2019 21:02

So it's not worth the money then?You'll end up with a bike with a …So it's not worth the money then?You'll end up with a bike with a knackered motor, unable to sell, and costly repair bill


It's absolutely worth the money. This is as good an electric bike as you could get at this price.
Would this work well as a commuter bike if you swapped out the 2.35 width tyres for hybrid bike tyres, 1.75ish width?
Edited by: "SuperFlyBlues" 4th Dec 2019
SuperFlyBlues04/12/2019 23:24

Would this work well as a commuter bike if you swapped out the 2.35 width …Would this work well as a commuter bike if you swapped out the 2.35 width tyres for hybrid bike tyres, 1.75ish width?


It would but remember it has XCR suspension forks which you don't need for commuting. Something like the Carrera Subway e-bike would be a better commuting bike. It really depends if you actually want to do light off-roading as well as commuting with the same bike. This bike you could be riding the bike with fork lockout on to work and still have to regularly service the forks, buy new seals etc and keep the forks out of the rain. I would be tempted to buy the bike and buy some additional rigid forks to swop over for commuting and only fit the Suntour XCR's when going off-road. Perhaps that is a little unfair as you have to be a bit more careful with a e-bike anyway and that care would benefit the forks as well, i.e. not leaving out exposed in the rain when you aren't riding it.

Also bear in mind that the best mountain e-bikes in performance terms are those that have mid-mount motors because of the extra torque available and the best commuting e-bikes for long term reliability and value are hub motor bikes. So the bike is a bit of a compromise not being ideal for either use but competent for both uses. However its the wrong bike if you have no intention of going off-road at all.
Where I live in the borough of Kingston (South West London), riding on the roads is similar to going off road.
Edited by: "Gooner77" 5th Dec 2019
SuperFlyBlues04/12/2019 23:24

Would this work well as a commuter bike if you swapped out the 2.35 width …Would this work well as a commuter bike if you swapped out the 2.35 width tyres for hybrid bike tyres, 1.75ish width?


I use an electric mountain bike for commuting and love it.
Mine is a Gtech escent, but to tell you the truth, i'd probably get this decathlon one for the same money (the decathlon one has more than twice the battery)
Edited by: "lutin" 5th Dec 2019
Has anyone gone for this? Looks like good value but can't find many reviews other than on the Decathlon site.
bonzobanana05/12/2019 10:34

It would but remember it has XCR suspension forks which you don't need for …It would but remember it has XCR suspension forks which you don't need for commuting. Something like the Carrera Subway e-bike would be a better commuting bike. It really depends if you actually want to do light off-roading as well as commuting with the same bike. This bike you could be riding the bike with fork lockout on to work and still have to regularly service the forks, buy new seals etc and keep the forks out of the rain. I would be tempted to buy the bike and buy some additional rigid forks to swop over for commuting and only fit the Suntour XCR's when going off-road. Perhaps that is a little unfair as you have to be a bit more careful with a e-bike anyway and that care would benefit the forks as well, i.e. not leaving out exposed in the rain when you aren't riding it.Also bear in mind that the best mountain e-bikes in performance terms are those that have mid-mount motors because of the extra torque available and the best commuting e-bikes for long term reliability and value are hub motor bikes. So the bike is a bit of a compromise not being ideal for either use but competent for both uses. However its the wrong bike if you have no intention of going off-road at all.



Really helpful comments. Thank you :-)
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