Hello! New and need advice!

CaptainCook

Just Joined
May 29, 2017
1
0
40
UK
Hi all,

I'm a pretty keen cyclist trying to get the other half out on the road with me. She finds cycling very difficult but a recent experience with some really basic e-bikes rented in Lanzarote was pretty positive and so I think an e-bike may be the answer!

I think she'd struggle with anything other than a step through/low cross bar type frame and she tends to have the seat height low enough so she can flat foot (both feet!) when stopping which means at her 5ft (153cm) height she has the seat pretty low!

In terms of riding, I'd like to be able to go out for around 40-50 miles (60-80km) of undulating riding (say 900m/3000ft climb max) averaging 25-30km/hr (15-18mph). She only weighs 41kg so I'm hoping that this is achievable with current battery tech.

I absolutely love the GoCycle, but £3500 is pretty steep for something I'm not even sure she will use, so I'm hoping to get something a little cheaper initially and perhaps go for the GoCycle at a later stage.

I'm looking for a few recommendations to start me off - particularly interested to know how the controllers work in terms of the pedal assist - I can see that the Bosch motors quote assistance in terms of %multiplier, this makes sense to me, although I'm not clear if the 300% refers to the total (e.g. 80W her effort +160W motor = 240W, or 80W her effort increased by 300% would be 320W). Also, is the speed limiter pretty fixed or relatively easy to switch off for any potential off road use?

Appreciate any help you can give me!
 

soundwave

Esteemed Pedelecer
May 23, 2015
17,129
6,573
the bosch motor is rated as 250w but climbing hills can use 700w+ under the 15mph speed limit in turbo mode.

you can buy a dongle to remove the 15mph limit but it will reduce the range the same as going up hill thus both using the same power just in a different way.
 

Woosh

Trade Member
May 19, 2012
20,555
16,974
Southend on Sea
wooshbikes.co.uk
I can see that the Bosch motors quote assistance in terms of %multiplier, this makes sense to me, although I'm not clear if the 300% refers to the total (e.g. 80W her effort +160W motor = 240W, or 80W her effort increased by 300% would be 320W). Also, is the speed limiter pretty fixed or relatively easy to switch off for any potential off road use?
the minimum rider's input is 25%, turbo assist adds the rest (75%). The upper limit of assistance depends on the motor of your bike. The top rated motor is Bosch CX, 20A controller which can send 720W to the motor, in addition to rider's input of 250W, you can climb pretty steep hills with nearly 1kW combined power.
 
D

Deleted member 4366

Guest
Get the Gocycle for her, then, when she doesn't use it, you have it for yourself. I wish I could afford one myself. I love them.

At only 41 kg, even the cheapest e-bikes would be more than adequate. Just get her one she likes the look of.
 

RobF

Esteemed Pedelecer
Sep 22, 2012
4,732
2,312
Barrelling along at 15-18mph on a derestricted bike with some hills is going to slurp battery power.

The rider's light weight has a very positive impact on range, but I still reckon it will be tight to get 50 miles at that speed from an average size 500wh battery.

Hours of fun to be had playing with the Bosch range simulator.

That suggests you are in with a chance, although in general I think its range calculations are a bit optimistic.

https://www.bosch-ebike.com/en/service/range-assistant/