Axle lengths?

[kiwi cowboy]

I have an ideayes that's right AN IDEA.

I have a 88 fzr750 and have found a 17 inch rim setup that will fit without much remodelling.
Is three spoke but straight not on an angle but when im on track I wont be lookin at it.

I do have two options to fit it though.
I will have to remove the swingarm and get a lug welded underneath it for the brake calliper brace(anything to worry about there?) but that's ok.

the only thing is the new rim is 20ml axel and the fzr is 17ml so I can either.

1/ get spacers made to reduce the hole to 17ml right through or.

2/ find an axel off another bike 20ml size that's the same length as the fzr.

So who has an axel in there bike that's 20ml and about 350-360 ml long (not counting the bolt head but counting the threaded bit).

After some makes and models if possible so I know what im looking for.

Would this axel thing work or am I pissing in the wind?.
I know I would have to get the chain adjusters milled out but that could be cheaper than getting reducing spacers made and would make it easier to change to wet rims.

Any thoughts welcome

[Kickaha]

the only thing is the new rim is 20ml axel and the fzr is 17ml so I can either.

1/ get spacers made to reduce the hole to 17ml right through or.

2/ find an axel off another bike 20ml size that's the same length as the fzr.

3/ find a different wheel bearing with same OD and 17mm ID

[Drew]

3/ find a different wheel bearing with same OD and 17mm ID

Too easy, but not always possible.

When I changed the wheel on the front of my FZR to one from a Thunderace, I had 'top hats' made to reduce the bearing ID. No one made what I needed.

It's cheap and simple, and means the original wheel can go back in if needs must.

For the torque arm lug. It needs to be strong as fuck, without weakening the swingarm. Alluminium is touch to weld and retain rigidity, pay for a real good engineer to do it.

[Akzle]

Akzle length? 9 inches.

[kiwi cowboy]

Too easy, but not always possible.

When I changed the wheel on the front of my FZR to one from a Thunderace, I had 'top hats' made to reduce the bearing ID. No one made what I needed.

It's cheap and simple, and means the original wheel can go back in if needs must.

For the torque arm lug. It needs to be strong as fuck, without weakening the swingarm. Alluminium is touch to weld and retain rigidity, pay for a real good engineer to do it.

It is possible to change the bearings but I would need to get a new spacer made for the rim and would still need to get reducers made for the brake calliper bracket and the sprocket carrier (oh I wish my bro still had his lath).
Im not worried about the original rear wheel going back in cos its a race bike only.

As for the torque arm, if it was going to be too risky welding a lug on I could get a calliper that goes on top of the swing arm and try to get a bracket made to fit it?.

[Drew]

It is possible to change the bearings but I would need to get a new spacer made for the rim and would still need to get reducers made for the brake calliper bracket and the sprocket carrier (oh I wish my bro still had his lath).
Im not worried about the original rear wheel going back in cos its a race bike only.

As for the torque arm, if it was going to be too risky welding a lug on I could get a calliper that goes on top of the swing arm and try to get a bracket made to fit it?.

OK, then modify the standard calliper to fit and just get top hats made to sleeve the bearing ID down.

Be sure to use the crush tube from the original wheel, so the little flat surface on the top hats doens't have to take any actual sideways force.

[kiwi cowboy]

OK, then modify the standard calliper to fit and just get top hats made to sleeve the bearing ID down.

Be sure to use the crush tube from the original wheel, so the little flat surface on the top hats doens't have to take any actual sideways force.

The standard calliper probably wont fit the way the calliper is designed with the mount bolts being angled down not parallel to the swing arm if you know what I mean.

I wont know for sure until I get a disc on the rim and see if the bottom bolt would clear the swing arm.

I was going to get a calliper off an impulse or something and make a new mount.

What is the crush tube?.

[FJRider]

I have an ideayes that's right AN IDEA.

I have a 88 fzr750 and have found a 17 inch rim setup that will fit without much remodelling.
Is three spoke but straight not on an angle but when im on track I wont be lookin at it.

I do have two options to fit it though.
I will have to remove the swingarm and get a lug welded underneath it for the brake calliper brace(anything to worry about there?) but that's ok.

the only thing is the new rim is 20ml axel and the fzr is 17ml so I can either.

1/ get spacers made to reduce the hole to 17ml right through or.

2/ find an axel off another bike 20ml size that's the same length as the fzr.

So who has an axel in there bike that's 20ml and about 350-360 ml long (not counting the bolt head but counting the threaded bit).

After some makes and models if possible so I know what im looking for.

Would this axel thing work or am I pissing in the wind?.
I know I would have to get the chain adjusters milled out but that could be cheaper than getting reducing spacers made and would make it easier to change to wet rims.

Any thoughts welcome

Only "Original" ideas are worth praise ...

Welding only needs certification for on road use ... (as far as I know anyway)

You can put a bush in to accept the bearings or find a bearing with the inner/outer specs to suit the 17 mm axle .... (Budget Bearings in Alex .. ??)

Just make sure the final drive cog is the correct distance out (for your bike) from the center of the rear wheel ... for correct alignment. Slight misalignment could chew cogs and chain apart. OR ... throw it off ...

Most engineering workshops could Build an axle to ANY required dimensions ... with any required threads ..

AND ..... ALWAYS piss downwind ...

[Drew]

The standard calliper probably wont fit the way the calliper is designed with the mount bolts being angled down not parallel to the swing arm if you know what I mean.

I wont know for sure until I get a disc on the rim and see if the bottom bolt would clear the swing arm.

I was going to get a calliper off an impulse or something and make a new mount.

What is the crush tube?.

Nope, dunno what you mean about the calliper bolts. Or whether the the disk bolts are gonna miss the swingarm.

Crush tube is the bit of pipe between the wheel bearings. It is what you are actually tightening the axle up on.

[kiwi cowboy]

Only "Original" ideas are worth praise ...

Welding only needs certification for on road use ... (as far as I know anyway)

You can put a bush in to accept the bearings or find a bearing with the inner/outer specs to suit the 17 mm axle .... (Budget Bearings in Alex .. ??)

Just make sure the final drive cog is the correct distance out (for your bike) from the centre of the rear wheel ... for correct alignment. Slight misalignment could chew cogs and chain apart. OR ... throw it off ...

Yep got that part ok.

Most engineering workshops could Build an axle to ANY required dimensions ... with any required threads ..
What about heat treatment??.
I think they have some sort of treatment from what I read in the net.

AND ..... ALWAYS piss downwind ...

I sit down

[FJRider]

I sit down

Bloody girl .... (as I always suspected)

Heat treatment is easy for qualified engineers ...

(and read your rep ... )

[Drew]

Bloody girl .... (as I always suspected)

Heat treatment is easy for qualified engineers ...

(and read your rep ... )

It's cooling the whole thing down slowly, that's important. Once it's been heated up to fucken hot in it's entirety of course.

[FJRider]

It's cooling the whole thing down slowly, that's important. Once it's been heated up to fucken hot in it's entirety of course.

AND ... depending on the choice of metal you use ...

[FJRider]

Akzle length? 9 inches.

What degree of magnification are you using ..

[unstuck]

Akzle length? 9 inches.

Your a midget then. Bet you got a small cock.