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Please pardon me if this topic has been discussed and my google foo was just not good enough to find the right place. Has any CBR125 owner converted from chain to belt? My wife and I are ready to purchase a 125r but we were hoping there was a kit for this project (like I did to her Honda 750 ten years ago). Thank you, in advance.
 

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For starters, it would be a power thief on a low horsepower bike, as the belt has to have a fair amount of tension to prevent the belt cogs from skipping on the pulleys. Another issue is that to maintain that tension consistently throughout the rear suspension travel, the drive pulley would have to rotate on the same axis as the swing arm pivot. If someone did make such a kit, it wouldn't be cheap either. Conventional drive chain and sprockets are still the most efficient means of transmitting power to the rear wheel on a small displacement motorcycle.
 

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Trying searching for Scooter Works Power Transmissions. They advertise chain to belt conversions as well as belt to chain.

1983 Honda CB 250 offered a chain or belt drive for this year only.

The conversion is not CHEAP. Expect the conversion to cost above $500.00.
 

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The Kawasaki KZ305 of the early to mid '80s was available with belt drive. The BMW F650 was also available with belt drive. Other than that, in recent times belt Harley is about the only manufacturer to adopt belt drive on any scale.

The idea is attractive. Belts are quiet and smooth. They are nearly maintenance free with a long life, but do have to be replaced on schedule. They looked a good option compared to the standard chain.

However since o-ring chains arrived on the scene the most of the disadvantages of the chain have been overcome. An o-ring chain life is as good as a belt with minimal maintenance compared to a standard chain.
 

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The Kawasaki KZ305 of the early to mid '80s was available with belt drive. The BMW F650 was also available with belt drive. Other than that, in recent times belt Harley is about the only manufacturer to adopt belt drive on any scale.

The idea is attractive. Belts are quiet and smooth. They are nearly maintenance free with a long life, but do have to be replaced on schedule. They looked a good option compared to the standard chain.

However since o-ring chains arrived on the scene the most of the disadvantages of the chain have been overcome. An o-ring chain life is as good as a belt with minimal maintenance compared to a standard chain.
You beat me to it Michael. It was called the GPz 305 over here, and it was quite a good little bike in it's day. :D

1986 Kawasaki GPZ 305 Belt Drive specifications and pictures
 

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The cbr has 23hp,

The cbr has an incredibly over engineered heavy 520 oring chain. (that why I dont run one because theres an easy hp gain)

bet even the noobest of noobs that neglect their bikes in the worst fashion could not break it in 20,000 miles.
 

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The cbr has 23hp,

The cbr has an incredibly over engineered heavy 520 oring chain. (that why I dont run one because theres an easy hp gain)

bet even the noobest of noobs that neglect their bikes in the worst fashion could not break it in 20,000 miles.
26 bhp at the crank, which is what all manufacturers quote. A belt drive would be a bonus for me. No maintenance. ;)
 
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