Cheap Brompton Conversion Kit?

[Deleted member 4366]

Do you ever have any problems with your threads bing cut and not rolled? The strength issue has been putting me off threading my own spokes.

My threading tool is a roller.

The dropouts will bend parallel when you tighten the nuts.

I just looked at that kit again, trying to figure out the width, but it doesn't say. Then I noticed 25 mph. There's no way that it'll do 25 mph. Firstly, it won't spin fast enough. The fastest small ebike motor I've ever seen was 400 rpm, which is 18 mph. My guess is that it's around 320 rpm , which is 15mph. Secondly, the controller is only 15 amps. Even if the motor could spin fast enough, 15A will only get you to 20 mph.

 

[anotherkiwi]

My threading tool is a roller.

I can find thread cutting hand tools galore but the only rollers I see are huge machines. Do you have a link pease?

TIA

 

[Deleted member 4366]

http://www.ebay.co.uk/itm/Cyclo-Tools-Spoke-Thread-Rolling-Head-14G-Greys-TL07840-/152038484116?hash=item2366332894:g:NkgAAOSw9KpW~64P

 

[Deleted member 4366]

 

[anotherkiwi]

http://www.ebay.co.uk/itm/Cyclo-Tools-Spoke-Thread-Rolling-Head-14G-Greys-TL07840-/152038484116?hash=item2366332894:g:NkgAAOSw9KpW~64P

Thanks very much! I actually found the Japanese one later in the night by putting "spoke thread roller" in Google... Doh!

Do you use it in the vice held machine? What do you use to cut them to length? Sorry to be a pain but you have the experience!

As Tailor wheels don't do the needle bearing Nexus 8 Inter hub I am thinking about building my own wheelset. Yes I can buy the right length spokes for that but I am also thinking about removing my Mxus hub from a 26" wheel to put it in a 28" wheel. There I will probably buy standard length spokes and cut them to length.

P.S. Very nice Brompton conversion

 

[Bernard Manansala]

I just looked at that kit again, trying to figure out the width, but it doesn't say. Then I noticed 25 mph. There's no way that it'll do 25 mph. Firstly, it won't spin fast enough. The fastest small ebike motor I've ever seen was 400 rpm, which is 18 mph. My guess is that it's around 320 rpm , which is 15mph. Secondly, the controller is only 15 amps. Even if the motor could spin fast enough, 15A will only get you to 20 mph.

I noticed that too, but I think what they meant was 25kph.

The only thing I'm concerned of is if the hub spins the right way, I wanna be able to fold as normal.

 

[Deleted member 4366]

Thanks very much! I actually found the Japanese one later in the night by putting "spoke thread roller" in Google... Doh!

Do you use it in the vice held machine? What do you use to cut them to length? Sorry to be a pain but you have the experience!

I just twizzled the thing with my hand. It did an adequate job, but if I did it again, I'd make a jig out of two blocks of wood on a base: One with a hole for the spoke and one with a peg to clamp the roller to, so that you can twizzle it with your hand, but it will be held straight.

 

[Bernard Manansala]

Forks Widened and Drops Dremeled Out. Waiting on Rim & Spokes

So relieved that the hub freewheels in the desired direction. I may have to hacksaw one side of the axle.

Can somebody give me a lead on a torque arm?

 

[patpatbut]

for torque washer you can ask Eddie from TETS. I have been using it and it works great. For torque arm you can ask ezee

 

[Bernard Manansala]

for torque washer you can ask Eddie from TETS. I have been using it and it works great. For torque arm you can ask ezee

Never mind, Torque Washers did come with the kit.

 

[Cyclezee]

for torque washer you can ask Eddie from TETS. I have been using it and it works great. For torque arm you can ask ezee

Our torque arms can be found on eBay via the following link: http://www.ebay.co.uk/sch/cyclezee/m.html?item=252315689059&ssPageName=STRK:MESELX:IT&rt=nc&_trksid=p2047675.l2562

 

[shemozzle999]

Forks Widened and Drops Dremeled Out. Waiting on Rim & Spokes

So relieved that the hub freewheels in the desired direction. I may have to hacksaw one side of the axle.

Can somebody give me a lead on a torque arm?

Looking good Bernard but I would suggest you replace the 2 spacer washers shown on the inside of the forks with the anti rotation washers, shown and hopefully supplied with the kit, on both sides of the motor.

The anti rotation washer tab needs filing down to the same thickness or slightly under thickness to ensure a tight clamping of the shaft to the fork.

If you can get or want to use the Electric Transport Shop bespoke washers Patpatput suggests you can leave the tabs long as they will fit inside the washer. They stop the fork ends from expanding out laterally.

I filed out the slight fillet radius on base of the anti rotation washer tab to ensure flush fitting on the inside surface of the fork this also ensures maximum positive clamping.

 

[Deleted member 4366]

Before going any further, Bernard, I'd check the motor's speed. Stick a magnet to it and use a cycle computer. You don't want to do all that wheel-building and then find out that you only have 200rpm (9mph max).

 

[Bernard Manansala]

Before going any further, Bernard, I'd check the motor's speed. Stick a magnet to it and use a cycle computer. You don't want to do all that wheel-building and then find out that you only have 200rpm (9mph max).

Good point, unfortunately I have nothing to power it. I am still waiting on my battery.

 

[Bernard Manansala]

Looking good Bernard but I would suggest you replace the 2 spacer washers shown on the inside of the forks with the anti rotation washers, shown and hopefully supplied with the kit, on both sides of the motor.

The anti rotation washer tab needs filing down to the same thickness or slightly under thickness to ensure a tight clamping of the shaft to the fork.

If you can get or want to use the Electric Transport Shop bespoke washers Patpatput suggests you can leave the tabs long as they will fit inside the washer. They stop the fork ends from expanding out laterally.

I filed out the slight fillet radius on base of the anti rotation washer tab to ensure flush fitting on the inside surface of the fork this also ensures maximum positive clamping.

I did find two anit-rotation washer in all the packing and they fit perfectly.

 

[Bernard Manansala]

Dremeled about an inch off the axle and now it properly folds...

Still waiting on Battery, and Rim & Spokes.

 

[patpatbut]

If you could get a black motor that would be much nicer. Not sure why you didnt request it. They can do it easily for you.

Also, I do see you have a torque washer but it is still better to get the one from TETS on top. Basically a washer wraps around the whole dropout to avoid the dropout widening.

Btw my Brompton also has the extended easy wheels like yours. Where did you get it?

Pat

 

[Bernard Manansala]

If you could get a black motor that would be much nicer. Not sure why you didnt request it. They can do it easily for you.

Also, I do see you have a torque washer but it is still better to get the one from TETS on top. Basically a washer wraps around the whole dropout to avoid the dropout widening.

Btw my Brompton also has the extended easy wheels like yours. Where did you get it?

Pat

They didn't offer one in black and I like the silver hub.

I keep reading "TETS" on this thread. Who or What is "TETS" and how can I get a set of those Torque Washers?

I got the Easy Wheel Extender off eBay.

 

[patpatbut]

https://www.electricbikesales.co.uk

 

[Bernard Manansala]

Rim in hand but the spokes I purchased are one gauge size too small.