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That's good, cos I made a mess! Thanks for all the collective help

Last one on this, so how much does it matter with the shunt mod if I'm a bit messy with the soldering... Basically I didn't go more than 2/3 up the leg, but it was thicker then just a bit of tinning.... Definitely blobby

Thanks Wheelie Pete. So have just done the shunt mod! I went about 2/3 up one of the legs of the shunt (only 1). So about 20-25% of total length I reckon...immediate improvement noticeable on hills, and pick up is much better. Thanks for all the help here - lets hope I haven't overcooked it

It doesn't feel like the same power on all levels at low speeds - if I bump up through the PAS, it pulls harder from take off, rather than it being just as powerful in PAS1 as PAS5 at low speeds.... Maybe I'm just being a newbie on this though....

Righto, thanks for that. have been slowly trawling through it now....presumably it only reduces range when its being worked 'hard' i.e. PAS5 when I try to push it trying to get up hills. Otherwise, on the flat, I'll be able to lower the PAS level for the same drive as before the mod and...

Thats great, thanks! I think I'll try the shunt mod first and if I kill it, I'll go for the KT controller. Where's the best place to get it/is KT the brand or just the protocol? ebay seems a bit random....

Hi Vfr, Will I lose top speed with this mod or just gain grunt at low speeds? Capped at 15mph here so don't want to lose any of that......

ok! just watched a video on someone doing this.....looks doable....any other side effects of doing this?

Thanks NealH.... I have no idea about how the controller achieves this, but will try your suggestion of PAS1 or 2 on hills, not sure I quite understand why this might be (!) but happy to give it a go!

I have a 2014 Batribike granite pro with a 250w rear hub motor (see photo)- can anybody tell me is this likely to be a geared motor or gearless? Can't see a model number.... I'm also wondering if the motor is up to full strength - it struggles on steep hills on maximum assist - is this normal...

I have a 2014 Batribike granite pro with a 250w rear hub motor (see photo)- can anybody tell me is this likely to be a geared motor or gearless? Can't see a model number.... I'm also wondering if the motor is up to full strength - it struggles on steep hills on maximum assist - is this normal...

Hi Gordon That's a great tip :) will check the fuse Thanks!

Thanks for the help. Will test after next charge, assuming it does!

Hi, Apologies if the info I'm after is already distributed about this wonderful forum but thought I'd ask some specific questions... I've just bought a 2014 Batribike Granite Pro, with a supposed dead and totally unresponsive battery, or at least one that needs re-celling, however on getting it...