Need a little chain education

id look for something close to the 9000 range,nothing higher than that needed for your bike.
lighter chain will just stretch and wear faster.

hey my name is alex, im grants son. i ride a 1983 kz750. i just put a d.i.d. pro series chain on my bike. i switched from the rk racing chain. this new d.i.d chain made a huge difference. even when my rk was brand new with new sprockets it didnt run this smooth. the d.i.d chain is a bit more but i believe it was well worth it. good luck bro

9000 tensile strength for a 750 twin?

Isn't it only 50 hp or so? I would think you would be fine with less chain than that.

Wouldn't between 7,000 and 8,000 be ok?

People are running chains between 8,000 and 9,000lbs tensile strength on modern 150+hp literbikes!

I think 54 hp is correct.

Topper wrote:

bountyhunter wrote:

You can go up to a 17T front and still use the stock 102 link chain.

What would I gain from going with a 17T engine sprocket?

The stock gearing is ridiculously too low if you ride one up and weigh under 200 pounds. The engine just screams all the time when you are cruising (stock revs are about 5100 RPM at 70 MPH).

Topper wrote:

I think 54 hp is correct.

But with stock pipes, the torque is very strong down to about 2000 RPM. FYI, I ran a ratio of 16/32 for about 25 years and it pulled fine. Not as fast off the line, but fast enough for me. Ran much smoother on the expressway.

tachrev wrote:

9000 tensile strength for a 750 twin?

Isn't it only 50 hp or so? I would think you would be fine with less chain than that.

Wouldn't between 7,000 and 8,000 be ok?

People are running chains between 8,000 and 9,000lbs tensile strength on modern 150+hp literbikes!

think of how much longer its going to last versus cheap as long as its adjusted and greased up,youll wear out a lot of tires before needing another chain.

wireman wrote:

tachrev wrote:

9000 tensile strength for a 750 twin?

Isn't it only 50 hp or so? I would think you would be fine with less chain than that.

Wouldn't between 7,000 and 8,000 be ok?

People are running chains between 8,000 and 9,000lbs tensile strength on modern 150+hp literbikes!

think of how much longer its going to last versus cheap as long as its adjusted and greased up,youll wear out a lot of tires before needing another chain.

gotcha

the 530 on my 1327 is 11,000 plus psi if i remember right

wireman wrote:

the 530 on my 1327 is 11,000 plus psi if i remember right

So how much HP/Torque is the 1327 good for? 200hp/115ft/lbs? Ever dyno it? That is the turbo bike, right?

Sorry for the threadjack. :blush:

nope just 33s on that one,but plenty of torque to hoist frontend at will, even with 3" over arm ! :laugh:

wireman wrote:
think of how much longer its going to last versus cheap as long as its adjusted and greased up,youll wear out a lot of tires before needing another chain. [/quote]

If it is more about how long the chain will last than it is about safety then a chain with 7000 lbs tensile strength may be an acceptable solution for my wallet right now. Like I said I've got to be fairly budget conscious.

What I clearly want to avoid is putting on a chain that isn't safe. If the difference between a chain with 7,000 lbs tensile strength and one with 9,000-10,000 is just about longevity (not safety) at least I can make an informed decision when shopping for a chain.

I wish I could afford top of the line (or at least above average) parts, but that isn't in cards right now.