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Replacing Drive Chain with a belt?

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Post  Bhoffo Sun 01 Apr 2012, 6:24 pm

Question I've seen/heard some other 'chain' driven bikes having had that removed and re-fitted with a 'belt'... was wondering if anyone has had thoughts of doing this to the Bandit (or done it) and all the pros and cons to such a job - if possible.. Question

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Post  Ross. Sun 01 Apr 2012, 6:32 pm

There is a guy on the Maximum Suzuki forums that has a Bandit with a belt drive.

Would hate to get a rock between the belt and rear pulley. It might just split the belt.

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Post  barry_mcki Sun 01 Apr 2012, 7:04 pm

Saw it on TWT as well, in the Mega thread about post #6643. The belt is kevlar, a rock would probably do more damage to the cogs than the belt. Saves a bit on weight 3.5lb vs 11.5. No oiling.

Cost was US$550, compared to new sprockets and chains hmm...

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Post  Bhoffo Sun 01 Apr 2012, 7:49 pm

Does sound good - particularly the part about 'no' oil... Smile

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Post  PaulG Mon 02 Apr 2012, 5:50 am

The belts are reinforced with kevlar or other types of polyaramid fibres.The belt itself is made of rubber like polymers.

A stone trapped between the belt and pulley will split the belt.- It happens all the time on Harleys in NZ.

You can't split and re-rivet a belt,so when you need to replace the stone damaged belt on the road,you will have to remove the swing arm to do so.

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Post  Hammy Mon 02 Apr 2012, 8:39 am

Thats a neat idea. Wuold love to see one in the flesh.
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Post  kewwig Mon 02 Apr 2012, 6:26 pm

Here's a hideously priced German one:

http://www.vh-motorradtechnik.de/products/en/Belt-Drive-Kits/Suzuki/Suzuki-GSF-1250-Bandit-WVCH.html
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Post  gus Mon 02 Apr 2012, 8:18 pm

I'd eat that up and spit it out in no time at all .Complete POX .
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Post  Reardo Mon 02 Apr 2012, 9:02 pm

gus wrote:I'd eat that up and spit it out in no time at all .Complete POX .
In your dreams. My Uncles drive belt on his Harley is 40,000km old. It has smoked off 4 or 5 full tyres(lot more small burn outs). He Clutch up wheellies all the time and the bike is 340kg, he is 130kg. And as for rocks in the belt spiting them, It does happen, but rarely. And there is shit loads of shit on the roads out here.


Last edited by Reardo on Tue 03 Apr 2012, 12:25 pm; edited 1 time in total

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Post  b12mick Tue 03 Apr 2012, 11:03 am

Just out of interest, anyone know why Harley's with modified motors use chain final drive and not belt?
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Post  Reardo Tue 03 Apr 2012, 12:23 pm

b12mick wrote:Just out of interest, anyone know why Harley's with modified motors use chain final drive and not belt?
The more power, the wider the belt has to be & some have big power with huge torque. Add a big fat tyre and there is no room left for the belt. At the end of day steel is the strongest.

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2007 Bandit 1250sa Silver
*Open airbox lid with K&N.
*Removed Secondaries.
*HealTech Gear Indicator w/tre "Advanced Timing Retard Eliminator is needed".
*Balanced TB's. My TPS was fine, but you should check yours.
*Arrow race headers with Yoshimura TRS.
*PC3 with the supplied map and these mod got 123hp with 115nm of torque.
*Neville Lush Racing custom tune = 130hp with 125nm at the Tyre (Standard 98hp/108nm).
My youtube channel (clickhere)
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Post  surfacc Tue 03 Apr 2012, 1:30 pm

The first item in the race kit for a Buell was to replace the belt with a chain. Belt is nice a quiet and low maintenancee for the road as long as there is not a huge amount of torque and not a lot of stones. From what I have heard the stone problem is worse when you have new bitumen and the stones become sticky little shits and then sit in the teeth on the belt. We should all buy BMW's with a shft drive and have no money for petrol and then life would be easy.
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Post  reddog Tue 03 Apr 2012, 2:06 pm

Reardo wrote:
b12mick wrote:Just out of interest, anyone know why Harley's with modified motors use chain final drive and not belt?
The more power, the wider the belt has to be & some have big power with huge torque. Add a big fat tyre and there is no room left for the belt. At the end of day steel is the strongest.

A mate has a Harley softail with modified Revtech motor (108ci?). It has snapped quite a few belts. He is over having to strip the bike to change belts so he is looking to go to a decent 530 chain so that it won't snap when doing a burn out Smile
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Post  Reardo Tue 03 Apr 2012, 5:26 pm

reddog wrote:
Reardo wrote:
b12mick wrote:Just out of interest, anyone know why Harley's with modified motors use chain final drive and not belt?
The more power, the wider the belt has to be & some have big power with huge torque. Add a big fat tyre and there is no room left for the belt. At the end of day steel is the strongest.

A mate has a Harley softail with modified Revtech motor (108ci?). It has snapped quite a few belts. He is over having to strip the bike to change belts so he is looking to go to a decent 530 chain so that it won't snap when doing a burn out Smile
No shit. My Uncles is waiting his motor to come back with a 107ci kit in it. that will piss him off if it snaps belt all the time.

_________________
2007 Bandit 1250sa Silver
*Open airbox lid with K&N.
*Removed Secondaries.
*HealTech Gear Indicator w/tre "Advanced Timing Retard Eliminator is needed".
*Balanced TB's. My TPS was fine, but you should check yours.
*Arrow race headers with Yoshimura TRS.
*PC3 with the supplied map and these mod got 123hp with 115nm of torque.
*Neville Lush Racing custom tune = 130hp with 125nm at the Tyre (Standard 98hp/108nm).
My youtube channel (clickhere)
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Post  2wheelsagain Tue 03 Apr 2012, 7:25 pm

There s a reason why HD powered drag bikes run 2+ inch belts.'
Many engines have timing belts these days as well as drive belts. Timing belts have huge torque loads and are good for 60,000km or more.

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Post  dhula Wed 04 Apr 2012, 12:04 am

2wheelsagain wrote:Timing belts have huge torque loads and are good for 60,000km or more.

Most timing belts these days are good for 100,000kms or more however it is kms traveled on the road and that is a different thing when we talk timing belts. The closest you'd probably get is engine hours. Roughly 1000 engine hours is what we are talking about in this example.

Timing belts are subject to nowhere near the torque loads of a drive belt like on a bike. They also don't get the punishment a bikes drive belt gets

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Post  2wheelsagain Wed 04 Apr 2012, 7:15 am

dhula wrote:
2wheelsagain wrote:Timing belts have huge torque loads and are good for 60,000km or more.

Most timing belts these days are good for 100,000kms or more however it is kms traveled on the road and that is a different thing when we talk timing belts. The closest you'd probably get is engine hours. Roughly 1000 engine hours is what we are talking about in this example.

Timing belts are subject to nowhere near the torque loads of a drive belt like on a bike. They also don't get the punishment a bikes drive belt gets

But they're nowhere near as wide.


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Post  b12mick Wed 04 Apr 2012, 12:27 pm

I did a bit of asking around and there appear to be two reasons for replacing belts with chains (final drive). The first is a chain is less likely to fail under power and the second has to do with 'power loss' to the rear. Apparantly there isn't as much power loss to the rear wheel when using a chain compared to a belt. Shaft drives loose more power again.
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Post  2wheelsagain Wed 04 Apr 2012, 3:07 pm

Here's an interesting read Chain V Belt
Its starting to make a lot of sense to me Wink

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Post  Reardo Wed 04 Apr 2012, 9:28 pm

2wheelsagain wrote:Here's an interesting read Chain V Belt
Its starting to make a lot of sense to me Wink
That was an interesting read mate. I'd try belt drive if was a bit cheaper.

_________________
2007 Bandit 1250sa Silver
*Open airbox lid with K&N.
*Removed Secondaries.
*HealTech Gear Indicator w/tre "Advanced Timing Retard Eliminator is needed".
*Balanced TB's. My TPS was fine, but you should check yours.
*Arrow race headers with Yoshimura TRS.
*PC3 with the supplied map and these mod got 123hp with 115nm of torque.
*Neville Lush Racing custom tune = 130hp with 125nm at the Tyre (Standard 98hp/108nm).
My youtube channel (clickhere)
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