MOTORED BIKEs, About to give up!!!!

MOTOMTB said:

the verdict is, the traditional bicycle derailleur and drive train is just not reliable enough for motored power and is too susceptible to damage while on the trails.

Click to expand...

Are you sure about your comment, because i have completely engineered out the unreliability of a conventional rear derailleur system.
Secondly, i prefer the exposed drive train method because it's fixable on a trail, should you have a mechanical issue, whereas an internally geared drive train will leave you up a creek without a paddle if the hub suffers an internal failure.

The below links are but one demonstration of the reliability of a modified external rear dive train system.
The second last photo of the first web link shows the system operating with good efficiency even when packed with snow, though most of it had fallen off the drive train by the time the photo was taken.

http://www.motoredbikes.com/showthread.php?43829-Snow-ride-August-2014

http://www.motoredbikes.com/showthread.php?42774-Anti-chain-suck-amp-chain-stabilisation-system&highlight=rear+derailleur

You obviously aren't riding the same trials the I do, or to the same degree. I ride my bike like a dirt bike. If you ride on flat paved roads with minimal debree, no, you won't have a problem. Like I mentioned before, the chain and derailleur in themselves are quite strong and will hold up to quite a bit of abuse and torment.....suprising actually, the problem is with debree in the trail, introduce the smaller little branch that throws the chain out of whack, or snags the derailleur and Bam. Gonzo. That's where the unreliability comes into play.

Actually, I love the derailler setup so much, I'm leaning towards that or nothing, i.e, I will probably keep the system and try to make some kind of cover or cage. Otherwise, the project get's scrapped and I'm parting things out.
I just don't think an IGH will hack, they're more weight, more complex, sort of weighed the pro's and con's and it doesn't pan out.

The problem is, making a derailleur cover that looks aesthetically pleasing is going to be tough. I will probably design it with CAD and 3D print it. Stay tuned.






She'll climb a mountain...literally.

MOTOMTB said:

The problem is, making a derailleur cover that looks aesthetically pleasing is going to be tough. I will probably design it with CAD and 3D print it. Stay tuned.

Click to expand...

You have described the solution. Now go ahead and make it happen, because whinging about the problem won't make the solution materialise out of thin air.

MOTOMTB said:

You obviously aren't riding the same trials the I do, or to the same degree.

Click to expand...

I ride similar trails, but do so with a trailer that carries safety gear and a bunch of spare parts as well as photographic equipment and food/drink supplies.
Riding like a banshee under those circumstances is not possible, and in my particular situation, it is not desirable because i'm out there to experience the magnificence of the scenery at a pace where it can be viewed to be enjoyed, such as these rides,

http://www.motoredbikes.com/showthread.php?42843-Mt-Buffalo-and-quot-The-Horn-quot-Hill-Climb-March-2014

http://motorizedbikeforum.the-talk.net/t384-mt-dandenong-fire-access-trail-september-2013

http://motorizedbikeforum.the-talk.net/t364-lake-mountain-hill-climb-march-2013



Although your bike looks like a well engineered machine, the Motoped concept much more closely fits your requirements.

Fabian said:

You have described the solution. Now go ahead and make it happen, because whinging about the problem won't make the solution materialise out of thin air.



I ride similar trails, but do so with a trailer that carries safety gear and a bunch of spare parts as well as photographic equipment and food/drink supplies.
Riding like a banshee under those circumstances is not possible, and in my particular situation, it is not desirable because i'm out there to experience the magnificence of the scenery at a pace where it can be viewed to be enjoyed, such as these rides,

http://www.motoredbikes.com/showthread.php?42843-Mt-Buffalo-and-quot-The-Horn-quot-Hill-Climb-March-2014

http://motorizedbikeforum.the-talk.net/t384-mt-dandenong-fire-access-trail-september-2013

http://motorizedbikeforum.the-talk.net/t364-lake-mountain-hill-climb-march-2013



Although your bike looks like a well engineered machine, the Motoped concept much more closely fits your requirements.

Click to expand...

Not really a comparison though. My bike is more of a mountain bike with wheels, the motoped is more of a motorcycle with pedals, heck they even sell a foot peg kit for it. I love the motoped, I will get one eventually but I have a few modifications I would do to it, and the first thing that would go is that heavy ass 4 stroke, I'd replace that with a Honda CR85 2 stroke race engine, to me that would be the perfect coupling of bike and engine but there's no way they would have been able to mass produce it using that engine option while keep the costs down...

MOTOMTB said:

Not really a comparison though. My bike is more of a mountain bike with wheels, the motoped is more of a motorcycle with pedals, heck they even sell a foot peg kit for it. I love the motoped, I will get one eventually but I have a few modifications I would do to it, and the first thing that would go is that heavy ass 4 stroke, I'd replace that with a Honda CR85 2 stroke race engine, to me that would be the perfect coupling of bike and engine but there's no way they would have been able to mass produce it using that engine option while keep the costs down...

Click to expand...

Plus, I sort of already have a motoped, but to me, it's a little better.
and the best part, it's my own company )
www.dirtforcemotorcycles.com