Another front end conversion. Parts list.

[CSpronken]

I know there are plenty of threads already, I just want to explain my plan and if I forgot something or if there would be any additional advise. I have a 2002 Curvy and this would be a little project for the winter.

The plan:

- Buy the TWF bearing
- SRAD top and bottom yokes
- GSXR K0-3 forks - GSXR K0-3 axle
- GSXR K0-3 wheel
- GSXR K0-3 discs and calipers
- GSXR K0-3 fender
- TL1000S clip-ons
- 120/70 front tire to compensate for the shorter forks
- Speedo to the rear
- take a mm or so off the ignition bolt
- Powder coat the rear wheel black as the GSXR front, possibly paint the fender
- Check if the standard GSXR springs (0.78 ) are stiff enough (racetech advise for my and bikes weight 0.85).

- Sell my SV front end (2002 preload adjustable with progressive springs :) if anyone wants it)

Is there anything I've forgotten?

[yorkie_chris]

You might need to space calipers in a bit
You already have that dust seal on your bike, no need to buy another.

I think you over simplify the "put speedo to rear" step

[CSpronken]

You might need to space calipers in a bit

Why is that exactly, cause of matching the SRAD yokes with the GSXR forks? basically the whole front end will be GSXR K0-3 except for the yokes.

You already have that dust seal on your bike, no need to buy another.Excellent, removed it from the list.

I think you over simplify the "put speedo to rear" stepWell I'm still hoping I can get that guide somehow.


Cheers.

[yorkie_chris]

Think about what calipers care about WRT discs... first being in right position radially... that is no problem 'cos you are matching disc and fork (320mm dia disc aye, SRAD ones are the same too FYI). But axially... the caliper must sit around the disc... if it is too far in or out it will foul (especially with new pads).

So distance between forks is controlled by yokes but affects caliper to disc fit. Maybe you would even be better using SRAD wheel as it may (fairly sure it has) have a wider hub to make up for the greater width of yoke. You may even use SRAD spindle too.

TBH without measuring everything it is hard to say... wait for someone who has done it... or just bolt it all up (before you strip SV down!!) and see whether it fits. that is best way :)

[fastdruid]

- Powder coat the rear wheel black as the GSXR front, possibly paint the fender


I found it was easier just to not clean the rear wheel[1]. ;-)

Druid

[1] But then I had the 'charcoal grey' wheels rather than silver and there wasn't a lot of difference between them and the black 'busa/SRAD wheel.

[fastdruid]

IIRC SRAD are wider than K0-3, certainly the SRAD wheel won't fit K6-8 (actually it might *just* but it'd be very tight).

Best is to stick with an entire front end.

Er have you got any TLS bars yet? I seem to have 4 (two sets) which I'm planning on selling.


Druid

[yorkie_chris]

SRAD keeps steering lock and such though, and has been done to work well with K1-3 forks which are a bit nicer.

[CSpronken]

Think about what calipers care about WRT discs... first being in right position radially... that is no problem 'cos you are matching disc and fork (320mm dia disc aye, SRAD ones are the same too FYI). But axially... the caliper must sit around the disc... if it is too far in or out it will foul (especially with new pads).

So distance between forks is controlled by yokes but affects caliper to disc fit. Maybe you would even be better using SRAD wheel as it may (fairly sure it has) have a wider hub to make up for the greater width of yoke. You may even use SRAD spindle too.

TBH without measuring everything it is hard to say... wait for someone who has done it... or just bolt it all up (before you strip SV down!!) and see whether it fits. that is best way :smile:

That's the thing, I have a chart ("sam's fork chart" link (http://img.photobucket.com/albums/v487/fiche-man/Forks/Fork-Conversion-Details.jpg)) with info about all last decades Suzuki's sportbikes forks and stuff, the only thing missing for me is the SRAD. So I don't know if it also has the 207mm yoke centre distance. I do think that Northwind basically has this set up.

I chose the K0-3, because it is available, has a stiffer spring than SRAD (0.78 vs 0.75) and the fender looks less agricultural.

I found it was easier just to not clean the rear wheel[1]. :wink:

Druid

[1] But then I had the 'charcoal grey' wheels rather than silver and there wasn't a lot of difference between them and the black 'busa/SRAD wheel.

LOL, I know where you're coming from there.

IIRC SRAD are wider than K0-3, certainly the SRAD wheel won't fit K6-8 (actually it might *just* but it'd be very tight).

Best is to stick with an entire front end.

Er have you got any TLS bars yet? I seem to have 4 (two sets) which I'm planning on selling.


Druid

No I don't have the TLS bars yet and yes would be interested (pm me for price). Just need to see how the deal with the GSXR front end works out if I can collect all the needed info to do this myself.

SRAD keeps steering lock and such though, and has been done to work well with K1-3 forks which are a bit nicer.

Yup that's the idea.

[Bibio]

here is a good chart.

http://www.twfracing.com/vbforums/showthread.php?t=529

i'd be inclined to get forks brakes and yokes put them on and measure. but as chris said srad wheel will most likely fit.

[fastdruid]

As per
http://imgur.com/mvqA5.jpg
and
http://i289.photobucket.com/albums/ll224/decosse01/Misc/Rotor_Matrix.jpg

k0-3 forks and wheel bearings are 7mm narrower than SRAD, would probably be easier with an SRAD wheel and spindle.

Otherwise you'll need two 3.5mm spacers for the wheel and for the disks/calipers.

Where are you? If you're midlands I've got a 'Spare' SRAD wheel you could try for fit.

Druid

[CSpronken]

k0-3 forks and wheel bearings are 7mm narrower than SRAD, would probably be easier with an SRAD wheel and spindle

Dang, I was afraid of that, but could not find the info. It's an option, but what fender will fit then, SRAD or K0-3?

Otherwise you'll need two 3.5mm spacers for the wheel and for the disks/calipers.Hmm, as long as I know it works in the end I'm willing to try.

Where are you? If you're midlands I've got a 'Spare' SRAD wheel you could try for fit.

DruidVery kind of you, but live across that little stretch of water where you lot and us cheese heads had our occasional exchange of round metallic objects. :)

[fastdruid]

Dang, I was afraid of that, but could not find the info. It's an option, but what fender will fit then, SRAD or K0-3?

Probably SRAD, although K0-3 may fit if you're prepared to stretch it a bit.

Druid

[CSpronken]

Probably SRAD, although K0-3 may fit if you're prepared to stretch it a bit.

Druid

According to Northwind they do, so my updated plan would be:

- Buy the TWF bearing
- SRAD top and bottom yokes
- GSXR K0-3 forks (Hayabusa or K4-5 springs if needed)
- SRAD/TL/Hayabusa wheel and axle
- Any Suzuki 320mm disc (TL has 134mm rotors centres, K0-3 132mm?)
- GSXR K0-3 calipers
- M8 washers on the calipers
- GSXR K0-3 fender
- TL1000S clip-ons
- 120/70 front tire to compensate for the shorter forks
- Speedo to the rear (final decision still pending)
- take a mm or so off the ignition bolt
- steel braided brake hoses
- Possibly paint the fender
- Check if the standard GSXR springs (0.78 ) are stiff enough (racetech advise for my and bikes weight 0.85).


Are there any differences in the way the mudguards are bolted onto the forks through the different years. In other words, ignoring yoke width for a moment, are they interchangeable, for instance bolting a K0-3 mudguard onto SRAD forks?

[yorkie_chris]

They changed mountings around a couple of times, some have 3 mountings... SRAD shape has 2 mounts and is same shape for years... way back into oil boiler years (80s) that are same fitment just slightly different shapes. Eg GSXR400GK76 one will fit SRADs, TLs etc.

Best bet is to look on eBay... see the different mountings stuck out of fork legs and compare.

[Berlin]

I've got a spindle thats been modified to allow SRAD wheels to be used in std K1-K3 forks. I can measure the difference if you like, its not much. I've also got a front wheel and some other bits from the 600 too.

C

[CSpronken]

I've got a spindle thats been modified to allow SRAD wheels to be used in std K1-K3 forks. I can measure the difference if you like, its not much. I've also got a front wheel and some other bits from the 600 too.

C

How exactly is it modified, why is it needed? Well I would need a SRAD wheel and disc, preferably no paint.

[Berlin]

Its machined so it lines up an SRAD wheel in K1-K3 forks and yokes. Working backwards from that should tell you where you need to be.

C

[CSpronken]

Its machined so it lines up an SRAD wheel in K1-K3 forks and yokes. Working backwards from that should tell you where you need to be.

C

Was it a SRAD axle you used for the modification? Sorry to be a bit thick.