Recent content by Projectitis

Hi all, I'm working on a custom build (recumbent trike style) which has a standard width (68mm PF30) bottom bracket at the front, and a 170mm fatbike axle at the rear. This is being powered by a BBS02 middrive motor. I need to ensure the chain clears the rear wheel with a nice direct...

Hi all, I'm currently designing the steering knuckles for a recumbent with 20" fat wheels. The hubs are 150mm (no dishing - i.e. tyre in center). The outside tire is 550mm diameter (around 21.6"). To get center-point steering with no scrub, I need an inclination of around 20 degrees. I've...

RE: Ebay. Unfortunately I'm not in the US :(

Thanks everyone, some great info there. Chalo, Wheazel - did you notice any difference in braking between the two wheels (i.e. brake steer) with the calipers not being in the same place on each wheel? I think I'll end up going for mirrored calipers if I can find them.

Hi all, How are the front disc brakes on the right and left sides of recumbent trikes designed? Presumably both sides need to be mounted so that they contact the disc in the same place (e.g. The right side can't be mounted at the top of the disc, and the left at the bottom). Are calipers...

Cool. Didn't think you'd go to all that trouble of fabricating without designing the steering :) Just checking! Enjoy your vacation!

Haha! Looks a bit like one. Nope, pulling moulds of a CNC milled plug (hand finished), then carbon fibre body shell for stiffness.

nerdalert - correct me if I'm wrong, but from the photos and vid of your ride, it doesn't look like you've followed 'normal' principles of steering design, including taking scrub radius in to account? It looks like your stub axles are connected directly to the upright at 90 degrees to the...

One thing (of many) I don't have in my shop (yet) - a lathe. Looks great! And yep, energy conservation is not what I'm going for with those wheels :) They're about 50/50 looks and comfort - they are the only suspension. Also, I don't like the way that large vehicles (larger than a bicycle, I...

Sannder - I have the same experience as you. I built my BBS02 750W mid drive about 6 months ago. I'll preface this by saying I haven't tried programming it yet, and I know you can do so to get different characteristics, but - Like you've noticed, the motor (using cadence sensor) is on/off' and...

Ah - I think I got what your after. I'll post anything else I see that might be relevant. Just got word my wheels are shipping! I'm pretty excited :)

Not sure exactly what style you're going for, Nerdalert, but here's another 'bare bones' sort of design to get ideas off. Google images: bee recumbent trike The vehicle also has quite a few cool ideas for storage etc that could be adapted: YouTube video

Very sorry, Toecutter, but I agree with nerdalert. That ride is not the prettiest vehicle I've ever seen! Nerdalert, as far as I know the ELF doesn't have a floor or doors? :) I think doors might be an optional extra.

Looks like tons of fun :) That has a ton of acceleration. 72v would have you pulling wheel spins! Question: why did you build all that camber into your front wheels? Almost all the reading I've done so far in to recumbent trikes keeps the wheels as vertical as possible, or perhaps a tiny bit of...

That sounds awesome! I have a home-made electric scooter (the one in my profile pic) with 48v 1000W hub motor that looks similar to yours. 20" wheel. We have a steep hill here I tested it on and it easily does 30km/h (18mph) without a problem. It doesn't have pedals. Your hill must have been...