Bike Forums

Bike Forums (http://www.bikeforums.net/forum.php)
-   Recumbent (http://www.bikeforums.net/recumbent/)
-   -   Delta Trike Rear Drive Suggestions Needed. (http://www.bikeforums.net/recumbent/940175-delta-trike-rear-drive-suggestions-needed.html)

w98seeng 03-26-14 03:01 PM

Delta Trike Rear Drive Suggestions Needed.
 
2 Attachment(s)
I want to build my own delta trike that has two wheel rear drive. Money is tight, so I have to come up with an idea that I can build with old bike parts.

Take a look at the pictures. I do not know if this trike is built how I want it, but it's very much like what I want to do.

If the rear wheels each had a single speed freewheel, would this allow for the different turning radius for each wheel?

Thanks,
Ian

http://bikeforums.net/attachment.php...hmentid=371134http://bikeforums.net/attachment.php...hmentid=371144

hueyhoolihan 03-26-14 03:43 PM

an interesting "thought' problem... :)

BlazingPedals 03-26-14 05:43 PM

Most deltas I've seen only power one rear wheel. It'd be a whole lot easier and more efficient to just make it a front wheel drive. Then you could even make it a leaner.

https://encrypted-tbn0.gstatic.com/i...EYNVvEP6eanItg

w98seeng 03-26-14 06:44 PM

1 Attachment(s)
Quote:

Originally Posted by BlazingPedals (Post 16614721)
Most deltas I've seen only power one rear wheel. It'd be a whole lot easier and more efficient to just make it a front wheel drive. Then you could even make it a leaner.

https://encrypted-tbn0.gstatic.com/i...EYNVvEP6eanItg

Wouldn't 2 wheel drive be more efficient?

I have another one I am building that will be FWD.

As for a leaner, I want to build one like this.
http://bikeforums.net/attachment.php...hmentid=371180

It seems to be an easy build and for my first leaner, I want an easy one. I also have all the parts needed. One change I will make is to add a disc brake to one crank arm and have the disc brake actuated by a friction shifter, this way I can hold the wheels level if need be.

Ian

cplager 03-26-14 06:52 PM

Quote:

Originally Posted by w98seeng (Post 16614884)
Wouldn't 2 wheel drive be more efficient?

Efficient? Probably not. Better traction? Only if built well.

PaPa 03-27-14 01:36 AM

Quote:

Originally Posted by w98seeng (Post 16614273)
I want to build my own delta trike that has two wheel rear drive. Money is tight, so I have to come up with an idea that I can build with old bike parts.

Take a look at the pictures. I do not know if this trike is built how I want it, but it's very much like what I want to do.

If the rear wheels each had a single speed freewheel, would this allow for the different turning radius for each wheel?

Thanks,
Ian

http://bikeforums.net/attachment.php...hmentid=371134http://bikeforums.net/attachment.php...hmentid=371144

The trike in the images you posted was built by Master builder Mark Stonich. Mark can be contacted through his site:

BikeSmith Design and Fabrication

The only time you genuinely need 2WD is for unfavorable riding surfaces. 2WD also complicates the build and triples the cost. There's a few examples currently produced: The Greenspeed Anura and the Hase Ketweezal (optional). Both have differentials.

BlazingPedals 03-28-14 06:40 PM

I can't tell who it was in the first video; but this one is definitely Tim Hicks. The trike looks identical, at least to me. I'd accept it as an act of faith that FWD is going to be more efficient than adding drive shafts or differentials, or applying power off-center. That ashtabula crank idea is interesting. I wonder how it handles since the rear wheels will never be across from each other? I mean, having a longer wheelbase on one side and shorter on the other would affect which side corners best?

[video=youtube;IrKlDhFEszQ]http://www.youtube.com/watch?v=IrKlDhFEszQ[/video]

osco53 04-06-14 04:38 AM

A differential is best..
 
Check out the Greenspeed Anura drive, It powers both rears I think with a limited slip differential.
The 'slip' should be adjustable by changing the fluid viscosity.
Greenspeed Recumbent Trikes - ANURA trike

Go to Atomic Zombie My son,,,
Atomic ZombieŽ DIY Bike Building Community - Atomic Zombie News


All times are GMT -6. The time now is 11:40 AM.