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Thanks for the suggestion, but I don't really want a rack mount.

Hi I'm at the point of considering what battery to use on my Tern Link P9 folder. I had thoughts of mounting it on top of the frame, which wouldn't interfere with the fold and I also have the option of a bottle battery, using the lugs already there. I'm toying now with using a Frog battery...

Delighted to report that the D8 steel fork fits the P9 perfectly. My bike guy told me that it was an easy swap. As the bike was delivered with a puncture today was the first opportunity to ride it. I only rode a mile or so back to my office but I was extremely impressed with the ride quality...

Thanks

Hi I've just taken delivery of my new Tern Link P9 with the intention of fitting a front electric hub. I ordered a steel front fork at the same time. This is for the D8 specifically but I hope it fits. I'll be bringing it to my bike mechanic later today. It looks like the fork will have to be...

Thanks Somehow felt I'd be OK once I'd switched to steel. I'd rather the fork bent rather than broke.

With it being my first build, I'm not inclined to have to do anything too complex so I may go front to keep things simple. Any thoughts on torque arms? I'll be keeping it to 250w.

Why is that? Surely it would be no different from riding a conventional bike?

Well after reading the replies and doing a bit of reading, I'm going to forget about torque sensing and just build a simple PAS + throttle. I've ordered a steel fork for the Tern so I can go front hub if I want. What would people recommend, front or rear power? I got advice from a US supplier...

Thanks Will have another look at mid drive before I make a final decision.

Well, I wouldn't quite call it nonsense! The first site I came to said not to do it, although logically it shouldn't really make a big difference. I'll keep mid drive in mind as I know it has some advantages. Will the Tern still fold nicely with the BBS installed - has anyone done it? I'll count...

S12S Controller S Series led/lcd $34 S-LCD3 $29 BPM2 36V350W FRONT DRIVING E-BIKE MOTOR WHEEL wheel $134.88 Battery $179 €406 It was a torque sensing controller and the battery is the bottle design. Ciclotek are a bit more expensive than I said as I'm taking into account that I can get the VAT...

Try this crowd too: http://www.ciclotekstore.eu/b2c/productos/1/2/1/ebike-motor-kits/1 They're based in Spain and offer free shipping. Very responsive to all my queries so far. I presume you're talking about BMS Battery? I specced up a similar kit and ciclotek are maybe €50 dearer. As against...

I don't think that would be too workable. Besides, the BBS01 is not supposed to be used with a nine speed derailleur. The info on their site says that as they're narrower than normal, the chain can wear quickly.

It's weight primarily. I'll have another look but I reckon a mid drive would be a bit heavier, albeit at the bottom of the bike. Would the BBS01 or 02 fit on the Tern?

Final question for tonight. I've put together a set of components from BMS Battery: A torque simulation sine wave controller, display, battery and 20" front hub. I'm back to front drive as I can change the forks to steel for little more than the cost and weight of two torque arms. I've asked BMS...

Thanks for that. It looks like it's a lot more complicated than I thought. I had a brainwave and I can get a steel fork for the Tern that I'm thinking of using. It doesn't cost much more than the two torque arms I was going to put in and it weighs just 220g more than the aluminium item, which I...

Hi Probably a stupid question. If I buy a 20" rear wheel prebuilt with a motor, is it guaranteed that my original 9 speed derailleur cassette will fit? I'm talking specifically about a Tern Link P9. Is there any spec I need to look out for? TIA

Just an addition I've just come across a Torque simulation controller on BMS Battery. Any good? I've also come across Cycle Analyst V3, which, with a torque sensor fitted to the crank, should also should do the job.

Hi I want to build an ebike using a Tern Link P9 2014. This has a 20" 9 speed derailleur setup. I want to keep the weight as light as possible, so a mid-drive kit isn't the way to go. Besides, I won't be tackling huge hills. Because the forks are aluminium, I want to mount the motor in the...