YPVS wheel options

[markylc]

Hi all,

I have 350R that has been in build for, erm a while.. 

she is a bitsa - currently on 31k wheels and forks. what is the easiest route to upgrade the wheels / front end?




thanks

[veg]

Depends on what you want without being rude. There are countless opportunities and options. First thing I would recommend is research on the forum see what you like the look of, also think of your budget and double it.
Then you’ll be in a far better position to make a decision. Once you’ve found the look ask questions people will be happy to help.

[markylc]

Ok ta.

[markylc]

I have had a look through and FZR600 genesis front end + wheels doesn't look like too much of a mountain to climb, I am sure there will be the odd hurdle.

On this build I would like to keep the traditional style forks and keep it as simple as possible.

If you know of any reason the rear wheel will not fit in the RD swingarm please shout.

Thanks
Mark

[veg]

Steve midlifecrisisrd is your man to speak to pm him ( be gentle with him as he has got poor poor Boo boos at the moment )

[midlifecrisisrd]

It's my foot, not my head lol

Not used the fzr front end but should be simple enough. Only thing I'd say is a lot of fzr's were 18 inch rear and the later 17 inch ones I think are 20mm spindle and 5 inch rim which is a bit too wide

I've done 2 now using fzs 600 fazer forks. (May even have a spare pair shortly)

Even the earlier non preload adjustable ones can have the cnc Chinese preload adjusters fitted.

In the rebuild section you can see the set up in my "leftovers" build

Stem needs shortened by 20 mm but you just get a machine shop to cut the threaded sections and plain section for the bearing cut 20mm further down then 20mm cut off the top

You can use the fazer top yoke or xjr 400 which have clock mounts

Both use risers and normal bars

Lets you slot the wheel/discs brakes etc straight in with a small mod on an rd400 Speedo drive

Rear wheel I've went for early xjr400 which is a 17mm spindle and uses the narrower 1kt sprocket carrier. The wheel is 17 x 4 so takes a 140 or 150 no prob. Think 4.5mm offset front sprocket sorts the chain run

I've also done fazer forks/yokes with spoked front wheel and fz600 swinger with rear spoked wheel but that was not for the faint hearted

Steve

[markylc]

Hi Steve,

Brill, many thanks for the info and advice, much appreciated and please do let me know about the forks.
I will have a look your 'leftovers build'

Cheers
Mark

[midlifecrisisrd]

Jun 26, 2020 13:30:00 GMT 1 markylc said:

Hi Steve,

Brill, many thanks for the info and advice, much appreciated and please do let me know about the forks.
I will have a look your 'leftovers build'

Cheers
Mark

Will do Mark

My mate has them just now keeping his fzr standing up while he gets his rechromed

Fazer yokes/wheel are cheap

Also means you can use blue/silver/gold spot calipers

Steve

[markylc]

Jun 26, 2020 13:33:49 GMT 1 midlifecrisisrd said:

Jun 26, 2020 13:30:00 GMT 1 markylc said:

Hi Steve,

Brill, many thanks for the info and advice, much appreciated and please do let me know about the forks.
I will have a look your 'leftovers build'

Cheers
Mark

Will do Mark

My mate has them just now keeping his fzr standing up while he gets his rechromed

Fazer yokes/wheel are cheap

Also means you can use blue/silver/gold spot calipers

Steve




Cheers Steve,
I have a pair of blue spots. I will start looking for the other bits. I promise I wont copy your paint job


This bike came to me from a dear old friend in boxes. bit of a mixture of 31k and 350r / N2. I have been doing bits and pieces off and on for a couple years. The engine is away being rebuilt, which is nearly ready (engine builder speak I think that means still a couple of months away It will have a fst road tune - still running the standard oil pump. I still need to source an uprated water pump and bigger rad. It has a zeeltronic ignition controller - jolly moto pipes / KR1s carbs and a cat.


 


It is sitting on a pair of mint unused 31k forks - I am sure someone will want them for a resto. 


I have the standard swing arm in there at the moment - will that work with the XJR rear wheel or do I need to change it?


Thanks






  

[midlifecrisisrd]

Not sure if it can be made to fit in the arm without too much surgery

The spindle hole will need opened up to 17mm

For the arm width as it is steel I would think the easiest way a pair of cuts through to the inner wall at the cross brace section and 2 cuts from inside out leaving the other wall then bend to suit and then weld up

Alternatively the fzr arm I used (think it's a 400 3en) is 17mm spindle and is wide enough

Only needs 5mm taken off each side at the pivot (the bearings still go back in) and an f2 ypvs centre spacers

Then it's just making up dog bones to suit

Alternatively you could stick an RGV arm in with an NK racing adaptor kit that goes onto the centre stand brackets.

That is 20mm spindle (strangely I have a vj21 arm, spindle, adjusters, shock and linkage 😂)

Steve

[markylc]

I think I will swap it out.
pls send me a message with what you need for the arm, spindle, adjusters, shock, linkage and the forks.

cheers
Mark

[midlifecrisisrd]

Jun 26, 2020 16:33:01 GMT 1 markylc said:

I think I will swap it out.
pls send me a message with what you need for the arm, spindle, adjusters, shock, linkage and the forks.

cheers
Mark

I'll dig it all out and check it over 👍

Steve

[fatfreddy]

Jun 25, 2020 18:59:38 GMT 1 midlifecrisisrd said:

It's my foot, not my head lol

Not used the fzr front end but should be simple enough. Only thing I'd say is a lot of fzr's were 18 inch rear and the later 17 inch ones I think are 20mm spindle and 5 inch rim which is a bit too wide

I've done 2 now using fzs 600 fazer forks. (May even have a spare pair shortly)

Even the earlier non preload adjustable ones can have the cnc Chinese preload adjusters fitted.

In the rebuild section you can see the set up in my "leftovers" build

Stem needs shortened by 20 mm but you just get a machine shop to cut the threaded sections and plain section for the bearing cut 20mm further down then 20mm cut off the top

You can use the fazer top yoke or xjr 400 which have clock mounts

Both use risers and normal bars

Lets you slot the wheel/discs brakes etc straight in with a small mod on an rd400 Speedo drive

Rear wheel I've went for early xjr400 which is a 17mm spindle and uses the narrower 1kt sprocket carrier. The wheel is 17 x 4 so takes a 140 or 150 no prob. Think 4.5mm offset front sprocket sorts the chain run

I've also done fazer forks/yokes with spoked front wheel and fz600 swinger with rear spoked wheel but that was not for the faint hearted

Steve

Steve,

I’m thick... Can you explain the stem modifications a bit more?

Also, will a FZS600 rear fit the standard ypvs swing arm?

[midlifecrisisrd]

Jun 28, 2020 8:12:17 GMT 1 fatfreddy said:

Jun 25, 2020 18:59:38 GMT 1 midlifecrisisrd said:

It's my foot, not my head lol

Not used the fzr front end but should be simple enough. Only thing I'd say is a lot of fzr's were 18 inch rear and the later 17 inch ones I think are 20mm spindle and 5 inch rim which is a bit too wide

I've done 2 now using fzs 600 fazer forks. (May even have a spare pair shortly)

Even the earlier non preload adjustable ones can have the cnc Chinese preload adjusters fitted.

In the rebuild section you can see the set up in my "leftovers" build

Stem needs shortened by 20 mm but you just get a machine shop to cut the threaded sections and plain section for the bearing cut 20mm further down then 20mm cut off the top

You can use the fazer top yoke or xjr 400 which have clock mounts

Both use risers and normal bars

Lets you slot the wheel/discs brakes etc straight in with a small mod on an rd400 Speedo drive

Rear wheel I've went for early xjr400 which is a 17mm spindle and uses the narrower 1kt sprocket carrier. The wheel is 17 x 4 so takes a 140 or 150 no prob. Think 4.5mm offset front sprocket sorts the chain run

I've also done fazer forks/yokes with spoked front wheel and fz600 swinger with rear spoked wheel but that was not for the faint hearted

Steve

Steve,

I’m thick... Can you explain the stem modifications a bit more?

Also, will a FZS600 rear fit the standard ypvs swing arm?

Lol

The wheel won't fit. It's 20mm spindle, 5 inch rim and veeerrrryy wide across the hub. That's why I used an xjr400 rear wheel as uses the thinner sprocket carrier and is 4 inch rim so chain run easier

As for the stem I wish I had one to hand for a pic

Basically the stem is 20mm too long

You could cut, reinforce and weld back up but you would have to make sure it was perfectly straight and I prefer not to have a weld in the middle

There are 3 sections at the top of the stem

There is a threaded section at the very top for the yoke nut

Then there is a slightly bigger threaded section below that for the 2 castle rings to adjust the bearing

Below that there is a plain section where the upper taper bearing sits with a slightly bigger diameter

As the sections get bigger as they go down it is possible to cut each section 20mm further down the stem to make the bearing and threaded sections in the right place to fit the ypvs headstock

You then cut 20mm off the end to make it the right length

I'll try and find a pic

Steve