K5 wheels in 750M?

[Quist]

Ok, before I spend a small fortune on a set wheels and discs...

So has anyone done it or know if it will work. A set Gsxr k5 wheels in a Gsxr 750 M. I know the front Axle is 25mm and the rear 27/28, that is an easy "problem" to solve. I'm mainly after if the sprocket carrier and disc spacing are quite correct or usable.

I'm gonna use a stock fork and a braced W swingarm. The K5 rear wheel is 6" wide.

It should be easier with a K5 fork but I want to stick at the stock fork.

 

[TLRS]

Those wheels have a front hub width of 128mm I believe. Disc centres are 132 apart I think, 0,5mm disc offset.

The aftermarket wheels I have should be 1000k5/8, front is anyway. Flange to bolt the sprocket against is 117,5mm from wheel centre.

[Quist]

So it is possible without major changes?

Planning to mount a set of Forged PVM 6 spoke wheels with Beringer discs... So before I buy... well you get it  

[SiBag]

I will have a quick measure up for you tonight for the disk spacing etc.

[Quist]

Picked up the wheels at my mate today, it's gonna work out 

[MeanBean49]

Im pretty sure the sprocket offset is 10mm bigger on k5 wheels. 10mm offset front sprocket would make chain foul on the frame.

I used k1-4 wheels. Solved it with a combination of 2mm spacer behind front sprocket, 5mm off rear carrier and talon sprocket fitted backwards to get the chain run to be straight and wheel central

[TLRS]

3 hours ago, MeanBean49 said:

I used k1-4 wheels.

Sooo, chainline is same as 1000k5? or 600?

[MeanBean49]

Im pretty sure all k series are 110mm and slabbies and slingshots 100mm

[Quist]

9 hours ago, MeanBean49 said:

Im pretty sure the sprocket offset is 10mm bigger on k5 wheels. 10mm offset front sprocket would make chain foul on the frame.

I used k1-4 wheels. Solved it with a combination of 2mm spacer behind front sprocket, 5mm off rear carrier and talon sprocket fitted backwards to get the chain run to be straight and wheel central

 

Exactly. 

 

I measured that theres 15mm need to go gone to get the wheel exact in the center. 

 

I can remove 5mm on the inside of the sprocket carrier, then I need to remove 10mm from the sprocket offset. Was thinking that a 10mm offset sprocket would solve it but indeed, the frame is in the way.. 

 

Idee: 5mm off the carrier, 5mm offset on front sprocket and a reversed offset rear sprocket which will solve the last 5mm.

 

Measured everything yesterday, nice to see the same solution! Thanks @MeanBean49 !

[TLRS]

How much meat is on the carrier? I have one that is only 13mm thick. If you're on 530, 520 will buy you a few mill... and save some weight in the process.

[MeanBean49]

Sawpping 530 to 520 wont do anything. The inside face of the speocket is still in the exact same place.

[Fula28]

We did do this , 5 or so years ago k5 6" rear wheel in 750m arm, including k5 slotted caliper hanger! It was a nice job, when finished.k5 front end straight in to 750m frame. With bearing swap,But you're on it allready.

[TLRS]

On 17-11-2016 at 8:14 AM, MeanBean49 said:

Sawpping 530 to 520 wont do anything. The inside face of the sprocket is still in the exact same place.

Not on it's own, agreed. But when a 530 runs close to the frame, a 520 will let you move the whole chain almost 4mm? further out.

[MeanBean49]

51 minutes ago, TLRS said:

Not on it's own, agreed. But when a 530 runs close to the frame, a 520 will let you move the whole chain almost 4mm? further out.

Yeah but then you have to space the rear sprocket carrier somehow, which isnt a good idea as they are meant to have the sprocket sit flush against it to take the torque from the engine properly

[TLRS]

Exactly, the rear sprocket is bob on the middle of the carrier bearing. The front sprocket, well I'm sure you know why I wouldn't want to move it further out

 

For reference, my rear wheel is a 1000k1/8. The distance between the centre of the wheel, and the face the sprocket sits against:

+- 117,5mm

TL

+- 111mm

[Quist]

Bugger... Made some deal on the PVM wheels with my mate. But he sold them in the meantime... fucker.

 

At least I do know that it will work, so looking again for some nice forged wheels again.

[TLRS]

Forged alloy? Mag? No CF?