Couple of photos of my new bike

[Grizzly Bear]

I hope these links work, I'm rubbish at this sort of stuff!

twiggy 001 on Flickr - Photo Sharing!
twiggy 006 on Flickr - Photo Sharing!
twiggy 005 on Flickr - Photo Sharing!

 

[alex_h]

Hi Bear,

is this battery is that rivetted box on the frame?

regards

Alex

 

[Grizzly Bear]

Hi Alex
yes that's the battery box, it's not riveted they are stainless steel button head bolts.

Griz

 

[alex_h]

Hey Bear,

How many cells did you manage to fit in there? is it 36V and what cells did ya use, tell us something please? it all looks very interesting

regs

Alex

 

[Grizzly Bear]

There is a 4p 16s A123M1 lifepo4 battery pack in there, that's 48 volts 9.2 Ah

 

[jerrysimon]

Wow that must shift over rough ground really well. Looks like a beast, great job.

Regards

Jerry

 

[eddieo]

nice job! battery where it should be IMO. what motor/controller did you use?

 

[Grizzly Bear]

Hi Eddie
it's just a little bafang and 48 volt 15 amp controller at the moment, I did have a Puma in it but I couldn't get it to run properly, I've got a Bafang BPM on order now. It goes very well on this setup though.

Griz

 

[Vikki]

Good work there, must have taken some time to make. nice one

 

[wurly]

Nice bike.
What rpm do you get running it on 48Volt? i guess you have a BMS with those cells?

 

[Grizzly Bear]

Hi
I don't know the rpm, but it was doing over 20mph with a 24" rear wheel, before I slowed it down to 17 mph with a variable resister in the throttle circuit. I'm more interested in hill climbing and off road performance, soft ground saps a lot of power. I use a BMS from Ping, he sells them separately.

 

[Morag]

Hey that looks great good going there.