Kudos Rapide gets 108 miles out of a 10.4 Ah battery.

One of my employees rode the Kudos Rapide 108 miles and still had 20% battery remaining,must remember to update the publicity blurb next time to 'Kudos Rapide up to 110 miles range'

KudosDave

One of my employees rode the Kudos Rapide 108 miles and still had 20% battery remaining,must remember to update the publicity blurb next time to 'Kudos Rapide up to 110 miles range'

KudosDave

did he switch it on?

did he switch it on?

Yep,switched on all the journeys. In hindsight,pro rata 130 miles claim would have been reasonable

KudosDave

The rider did at least 84% of the work then, just 16% electric propulsion.

Since the additional weight of the e-bike over a good road bike would have used at least that 16%, he'd have been better off on an unpowered roadbike.

Kalkhoff did the same with a team of three riders, each of the three completing 100 miles on a 10 Ah battery, riding Pro Connects on a track.

.

The rider did at least 84% of the work then, just 16% electric propulsion.

 

Since the additional weight of the e-bike over a good road bike would have used at least that 16%, he'd have been better off on an unpowered roadbike.

 

Kalkhoff did the same with a team of three riders, each of the three completing 100 miles on a 10 Ah battery, riding Pro Connects on a track.

.

Tony....not on a track on normal roads.

Dave

Tony....not on a track on normal roads.

Dave

Yes, I realised that Dave, possibly not all in one continuous cycle ride either. I mentioned the Kalkhoff case to show yours was better than that.

I don't think these efforts have any meaning for the average e-bike customer though, most want to know if they'll get up hills without pedalling!

.

For the sake of consistency on the Forum can we not all agree to quote the average battery consumption as 12 w/hr per mile.

There are a few who eek out a fair bit more a few who can blitz it up to double and more that rate.

I've been reading this Forum long enough to be fairly confident that 12 w/Hr per mile is around what most riders achieve.

For the sake of consistency on the Forum can we not all agree to quote the average battery consumption as 12 w/hr per mile.

There are a few who eek out a fair bit more a few who can blitz it up to double and more that rate.

I've been reading this Forum long enough to be fairly confident that 12 w/Hr per mile is around what most riders achieve.

Absolutely true Kenny, and why I quote 12 Wh per mile as average. It's been proved in past threads where we've collected the averages members get.

The very low figures a few get are very misleading for newbies.

.

For the sake of consistency on the Forum can we not all agree to quote the average battery consumption as 12 w/hr per mile.

Nope, as my bike consumes about 6 watts per mile, with the lower assistance on all the time, on a number of paths, with wind, and with assistance/cycling all the time (crank-driven bike).

I guess people with an electronic moped/throttle can probably look at 12w/mile only, but this would be a very low range for an actual bike.

Nope, as my bike consumes about 6 watts per mile, with the lower assistance on all the time, on a number of paths, with wind, and with assistance/cycling all the time (crank-driven bike).

 

I guess people with an electronic moped/throttle can probably look at 12w/mile only, but this would be a very low range for an actual bike.

Nope 25 wh per mile with no throttle and a standard low power Bosch. Just like the length of string question.

Nope 25 wh per mile with no throttle and a standard low power Bosch. Just like the length of string question.

Exactly, so it's not just as simple as using 12w/h as an average.

It's a little bit more complicated, depending on the type of motor, type of bike, condition of use etc.

Quoting an average figure of 12w/h is the same as quoting an average mpg for all cars available on the market, under all driving conditions

Nope, as my bike consumes about 6 watts per mile, with the lower assistance on all the time, on a number of paths, with wind, and with assistance/cycling all the time (crank-driven bike).

 

I guess people with an electronic moped/throttle can probably look at 12w/mile only, but this would be a very low range for an actual bike.

I did say 12 w/hr is the Battery consumption that the majority of riders achieve.

I'm pretty certain your style of riding is very much in the minority.

My suggestion is just so that we could hopefully get a bit of consistency when discussing Battery ranges.

Edited March 3, 201610 yr by Kenny

I did say 12 w/hr is the Battery consumption that the majority of riders achieve.

Yes, and the large majority of cars on the road achieve a fuel consumption of 10mpg...or better.

I am afraid there is no such thing as a meaningful average...

I think someone should build a proper estimator tool/spreadsheet, which would take the following inputs:

• Type of motor (crank vs. hub)
  
• Weight of bike
  
• Weight of rider
  
• Type of bike (road, hybrid, MTB)
  
• Type of terrain (flat road, flat path, hills, mountain)
  
• etc
  

Quoting an average figure of 12w/h is the same as quoting an average mpg for all cars available on the market, under all driving conditions

Not really like that, it's exactly as Kenny said, the 12 w/h per mile is around what the majority get. A to B magazine with their very long experience of e-biking and e-bike users say the same.

The threads on this we've had in the past confirmed it, a few around the 8 mark, very few below and above the 12 there were decreasing numbers down to about 24 W/h per mile.

There will always be enthusiasts getting better, especially in a forum like this, but the size of their pedalling contribution is undeniably far in excess of that of the average e-biker.

.

108 miles,80 % tank,say 130 miles max.

10.4 Ah x36v....375 watts.

I make that 3.47 watts per mile.

Actually the same battery is in most of the Kudos e-bikes so all Kudos bikes would look to be the longest range of any e-bike.

If you want a bike to ride 20 miles every day to work,you wouldn't have to recharge for 6 days,that's amazing.

How is this achieved....a secret brain analyses the battery usage and gives it optimally to the motor,it's called the controller!!!!'

So,the Secret should be good for up to about 90 miles and the Tornado for up to 120 miles(slightly higher rolling resistance)

KudosDave

should be the 4 f guide.

how FIT

how FAR

how FAST

how FAT

should be the 4 f guide.

 

how FIT

how FAR

how FAST

how FAT

And how f......... at the end! That is 'flushed' of course.

KudosDave

besides SW 4f guide, here is my estimate for a fit rider keeping to around 13mph and in ideal conditions:

light assist, thin tyres, without throttle and without suspension: 5wh/m

air suspension: 1wh/m

coil spring suspension: 1.5wh/m

comfort road tyres: 0.5wh/m

knobblies: 1wh/m

folding frame: 1wh/m

full power throttle: 1wh/m

for each m/h above 13mph: 1wh/m

example: Kudos Secret: 5wh/m + 0.5wh/m (road tyres) + 1wh/m (folding frame)= 6.5wh/m, its 8AH battery should give about 40 miles. Kudos Rapide: 5wh/m + 1.5wh/m (coil spring suspension) +0.5wh/m (comfort road tyres) =7wh/m. Its 10.4AH battery should give about 50 miles.

an MTB converted with BBS02 riding at 28mph:

5wh/m + 1wh/m (knobblies) + 1wh/m (full throttle) + 1.5wh/m (coil spring forks) + 15wh/m (speeding)=23.5wh/m. A 15AH battery would give about 22 miles range.

Edited March 3, 201610 yr by trex

besides SW 4f guide, here is my estimate for a fit rider keeping to around 13mph and in ideal conditions:

 

light assist, thin tyres, without throttle and without suspension: 5wh/m

air suspension: 1wh/m

coil spring suspension: 1.5wh/m

comfort road tyres: 0.5wh/m

knobblies: 1wh/m

folding frame: 1wh/m

full power throttle: 1wh/m

for each m/h above legal speed: 1wh/m

 

 

example: Kudos Secret: 5wh/m + 0.5wh/m (road tyres) + 1wh/m (folding frame)= 6.5wh/m, its 8AH battery should give about 40 miles. Kudos Rapide: 5wh/m + 1.5wh/m (coil spring suspension) +0.5wh/m (comfort road tyres) =7wh/m. Its 10.4AH battery should give about 50 miles.

But Trex,you know I am honest about this and genuinely we got 108 miles with 80% remaining,it is really only on a par with Kalkhoff,Quic and Stromer claims...I must be honest and say it uses a highly developed battery containing Lithium and aircraft quality aluminium in the frame,also there is special rubber in the tyres.

KudosDave

Yes, and the large majority of cars on the road achieve a fuel consumption of 10mpg...or better.

 

I am afraid there is no such thing as a meaningful average...

 

I think someone should build a proper estimator tool/spreadsheet, which would take the following inputs:

 

• Type of motor (crank vs. hub)
  
• Weight of bike
  
• Weight of rider
  
• Type of bike (road, hybrid, MTB)
  
• Type of terrain (flat road, flat path, hills, mountain)
  
• etc
  

To add to that, elevation gain and the average gradient over the length of the journey.

get a tred mill and strap the bike to it and get him to do it in a controlled space and i bet he can not do that distance even on that.

if he cant then sack him

Unfortunately it seems I am one of the unlucky few that burns below 8 W/km. On a good day a lot less.

I have strong legs but shot lungs. My bike weighs 20.5 kg with the battery (the same 10.4 Ah one KD has). I am over 60. The wind blows from the North East... I can do 70 very hilly km on a full charge (soon to double thanks to a 10 Ah lipo range extender pack ).

I am only using the motor to climb hills and against the wind on the flat. Where I live just those two factors makes a pedelec the dream transport costing peanuts to get from point A to point B for the least sweat. Oh and when I have the trailer hooked up full of shopping or fishing gear - priceless! And not having to rely on public transport when there is hardly any or being tied to the public transport timetable.

I could go on and on (I'm starting to enjoy being over 60 can you tell...) with more very good reasons why we the 8 W minus minority also need a pedelec. Did I say I don't like cycling as a sport and for me it is just a means of transport? Yeah thought I did...

so what his avg speed then? as it must be like 3mph lol

19 mph.

KudosDave