Belt Drives Pwn You All

Oli · *by **Oli** on Sat 6/Sep/08 12:03am*

I like chains - links are cool technology. :thumbsup:

Jesus-Scotland · *by **Jesus-Scotland** on Sat 6/Sep/08 8:32am*

Punter wrote: Buells have been gay since the came out and so is that

they are the most hetro harley tho

Craftworks_rider · *by **Craftworks_rider** on Sat 6/Sep/08 10:19am*

I have no problem that the belt will work fine but I don't think it will out last a single speed chain. It will also require more tension, therefor putting a bigger load on your bb and rear hub.
If it's not broke don't fix it.

radical_edward · *by **radical_edward** on Sat 6/Sep/08 10:23am*

Having to buy a whole new belt and what looks like an expensive cnc machined pulley every tie you change ratio is going to wear some of the shine off of belt drives too.

radical_edward · *by **radical_edward** on Sat 6/Sep/08 10:24am*

Jesus-Scotland wrote:
Punter wrote: Buells have been gay since the came out and so is that

they are the most hetro harley tho

Textbook definition of lipstick on a pig.

big_daddy_jj · *by **big_daddy_jj** on Sat 6/Sep/08 10:47am*

Conners wrote:
big_daddy_jj wrote:
philstar wrote:
the other reason drag cars use big tires is that they have so much torque that you need to spread the shear force of the rubber over a grater area.
Wouldnt that work to the opposite effect? surely running your tyres on a grater would be the last thing you want to do

Their fat tyres have a couple of other purposes as well:
i) They flex massively as the torque is applied (initially). If you've ever seen a photo or slow-mo video of a drag car at launch, you'll know what I mean. The tyres grip, the hub spins, the tyre effectively "twists". An anti slip/traction control device of sorts.

ii) As the tyre accelerates, it increases in diameter - thus increasing the cars overall gearing. Lower gearing on launch, ramping up as the car accelerates - it's a win win.

Thats not what im getting at :sly:

Conners · *by **Conners** on Sat 6/Sep/08 12:47pm*

No - after reading your post it's become obvious you're actually talking about running your tyres on a (cheese) grater? :eh:

Conners · *by **Conners** on Sat 6/Sep/08 12:48pm*

big_daddy_jj wrote:
Conners wrote:
big_daddy_jj wrote:
philstar wrote:
the other reason drag cars use big tires is that they have so much torque that you need to spread the shear force of the rubber over a grater area.
Wouldnt that work to the opposite effect? surely running your tyres on a grater would be the last thing you want to do

Their fat tyres have a couple of other purposes as well:
i) They flex massively as the torque is applied (initially). If you've ever seen a photo or slow-mo video of a drag car at launch, you'll know what I mean. The tyres grip, the hub spins, the tyre effectively "twists". An anti slip/traction control device of sorts.

ii) As the tyre accelerates, it increases in diameter - thus increasing the cars overall gearing. Lower gearing on launch, ramping up as the car accelerates - it's a win win.
Thats not what im getting at

No - after reading your post again it's become obvious you're actually talking about running your tyres on a (cheese) grater? :eh:

tripler · *by **tripler** on Sun 7/Sep/08 10:03pm*

Belts flex but dont really stretch,the torque that a bike will create is so minimal,if you think that the belts on a standard 4 cylinder motor are only 15mm in width? and the torque created from a car motor is way higher than a bike could produce yet there is flexability in the belt,friction? there is no friction in a toothed belt just contact,the reason why we have chains is becouse of that little invention by mr Campaqnolo,the deraileur (yes he did invent it)thats why belt and shaft drives went to chains plus it was/is cheaper to make chain/deraileur than belt/shaft drive,belt drive has its cool facter and silent running,if I could buy a belt drive conversion kit (belt/belt ring/belt sproket) for a few hundred dollars I would probly buy it

Oli · *by **Oli** on Sun 7/Sep/08 10:11pm*

Tullio Campagnolo did NOT invent the derailleur, but he did take out the first patent on one.

They were invented in the late 1800s, but it was "Velocio" or Paul de Vivie who is widely credited with popularising them with his two-speed derailleur released in 1905.