Excellent :hail

I'll pin this in the frequent mods forum when you've filled in the blanks.

How would the disks be offset by 1mm on the K3/K4, I had a quick look on mine and couldn't see anything obvious :dunno

 

How would the disks be offset by 1mm on the K3/K4, I had a quick look on mine and couldn't see anything obvious :dunno

It was something Les spotted, either the rotors are thinner or the carrier is offset :O

I've added your bits

 

K3 M/C diameter = 14mm (K4 too I guess)

K3 Rake and Trail (as per manual) 23.5/91mm (K4 too I guess)
TLS Rake and Trail (as per manual) 23.7/94.5mm
TLR Rake and Trail (as per manual) 23/90.6mm

The Busa had conventional 6 pot Tokico calipers.

(and as you add them to the chart it'll look like we're giving answers to info you already have :laugh)

 

Great stuff Sam, very clear and informative.:hail Dont no about any one else but this info will definatly help me with my future mods. Just one thing though, i dont surpose you know where i can find one of those trees, that money grows on to help me finance said mods.:laugh

 

maybe you can include what spacers etc that are needed to run stock TLR front wheel or if u want to change it for a newer version once you upgrade ur forks :O

 

Still not sure how to address the issues of spacers for different combinations or how to tabulate them.

Still open to suggestions on that one MR_Korrupt

When all the box's are filled in it should be possible to work out what spacers are needed from the numbers etc

I could list a couple of the popular conversions, but once you get to K5 onwards where the spindle design changes it gets complicated.

 

I could list a couple of the popular conversions, but once you get to K5 onwards where the spindle design changes it gets complicated.

Could you elaborate a bit on the spindle difference? I am looking at 2004 GSXR 750 forks. Or was your comment on K5 in reference to the GSXR1000, not 600/750?

I plan on using these forks w/ Van's triples. Since they are still in the works I have the option to go w/ TLR or GSXR spacing. Would GSXR be smarter/easier? I'd like to keep TL wheel and rotor for my sanity.

 

:hail Sam

 

Thanks :thumbup

 

Your Busa heading should read 99-07. They changed pretty much everyting in 08.

 

front end info

Hayabusa rake/trail 23.42/93mm

Fork springs (per Race Tech)

TLS 38.2 x 36 x 273 0.740 kg/mm
TLR 38.2 x 35 x 250 0.934 kg/mm
Haya 38.2 x 35 x 250 0.850 kg/mm

 

Fork springs (per Race Tech)

TLS 38.2 x 36 x 273 0.740 kg/mm
TLR 38.2 x 35 x 250 0.934 kg/mm
Haya 38.2 x 35 x 250 0.850 kg/mm

Fork Springs (per Race Tech)

GSXR1000 K1/K2 0.876kg/mm
GSXR1000 K3/K4 0.850kg/mm
GSXR1000 K5/K6 0.960kg/mm
GSXR1000 K7/K8 0.976kg/mm

 

:hail

 

K1 / K2 GSXR1000 geometry from the manual > 24/96mm

 

Sam you have way too much time on your hands - build me a bike.........:laugh

 

Caliper mounting centres, the K1/K2 GSXR had the smaller conventional mount 72mm or something? 90mm for the TLS/TLR/Busa? Not 100% sure.

 

Thanks Sam...just what I was needing!

 

The text in red I need confirming and now the blanks are easier to see.

I have changed the wheel width to 130mm and I think the PCD should be 90mm not 91

I have read another post re the GSXR wheel hub with and that said 128mm which would explain the query over the GSXR 1mm disc offset.

Again need some confirmation.

I have measured my GSXR750 Fork lengths and should be able to get the 1000 aswell, but please note guys that the forks need to be assembled and have springs in to part compress the rebound spring to give the correct length.

I'm sure the GSXR1000 have 1kg/mm springs but not sure if thats a rounded figure :O

 

Is this just for Suzuki frontends/parts? I have an '05 R1 frontend that should cover 2004 thru 2006 for specs. I am gonna try to put this on my TLS but apon initial inspection the stem looks to be shorter. The may be because the top clamp needs less protrusion, I'll let you know. Does any manufacturer use a 25mm front axle besides Suzuki? Honda and Yamaha use 20mm.

 

I'm affraid the chart will only be Suzuki, there is enough variables and confusion without introducing other fitments :devious

I will possibly add the R1 calipers at some point as they fit the radial forks.

 

On Tuesday I'll add these numbers to the chart as the master is at work,

A typical Example (my race bike)

GSXR1000 K4 Forks
GSXR1000 K4 Yokes
GSXR1000 K4 Calipers
TL Front Wheel and Discs

You need :-

1. Shorten 3.5mm off the Captive Wheel Spindle Nut to centralise the wheel
2. Fit 4No 10mm Caliper Spacers

Not ideal for a road bike as you will need to sort out the lock stops and ignition barrel

The gap between fork bottoms is 165mm
Stock Captive nut spacer has a sleeve length (excluding flanged head) of 58.2mm
Spacer to suit above setup becomes 54.7mm

The TL wheel hub is 2mm wider than the Stock GSXR but the 1mm either side is still ok within the caliper slots, the caliper slot gap is 9.5mm and the TL disc is 5mm wide, so you normally have 2.25mm clearance but you end up at 1.25/3.25mm

 

last year I did same thing for TLR for rain tyres on TLR rims

then
GSXR1000K3 forks
GSXR1000K3 calipers with 10mm spacers
GSXR1000K3 tripples

TLR rims
TLS 320 mm disks

i push the wheel spindle for 3mm and use GSXR axxle

but I don't like these : the clearance beetween disks and calipers for the external side is very low compare to the internal side... :confused

I prefer buy another GSXR front rims to put the rain tyre ..... :devious

 

Just to note with Example 1 on that list Sam...

Where the Axle go through the fork bottoms, on the TLR I measured the Outside to Outside thickness as 41.7mm (with digital calipers, so most likely 42mm!)

With GSXR1000 K4 tripples and GSXR600K4 forks, I took the same measurement, and they are 40.7mm (again assume digital error, so say 41mm)

This means, that the axle nut/spacer needs to be only machined 3mm, not 3.5mm as indicated.

I kept staring at mine for ages, thinking it was ever so slightly off, and now I'm convinced, lucky for me I didn't machine the axle nut itself but used an external ring to bring it out from the fork bottom...so just need to get 0.5mm machined off of it and I'm sorted.

Everyone who's done the full swap but kept the TL1000 wheel, check and double check this, otherwise your wheel may be slightly to the left (as sat on bike) causing the front to feel vauge esp on right hand corners.

 

...This means, that the axle nut/spacer needs to be only machined 3mm, not 3.5mm as indicated.....

3.5mm is half the difference between the centers in the triple clamps - (214-207)/2 = 3.5mm

Measuring at the fork bottom is not too accurate - you can easily get a bit of flex on there.

Even if it were off by 0.5mm, I would be extremely doubtful that you could
a) see 0.5mm (20 thou inch) offset to one side
b) feel any difference in handling.

 

Could you add the fork cartridge diameter to this table?
TLS/TLR have 25mm cartridge. The newer gixxers have supposedly smaller cartridges.

Greetings
Rufer

 

It's actually off to the naked eye by 1mm...1mm wider on the right side than it is the left (as if sat on the bike).

You need to adjust it by 0.5mm to even the difference between both sides.

It does affect the handling...as the contact the tyre has with the ground is not very big at any given lean angle...offsetting it by 0.5mm the wrong way has a massive difference...more so than adjustable offsets on yokes have on trail.

At the end of the day, I'm measuing it as the forks rest in free space, and as the axle is clamped in the fork bottoms either side, that offset would of remained the same.

I've got 2mm more offset in my Attack performance yokes, so overall offset of the forks is the same as what they would of been in the TLR yokes...so it's not due to that before anyone asks...also the gsxr600K4 forks I've used are ever so slightly longer than the TLR ones so I've dropped them through accordingly so they work out the same as before...I've tried to mimic my old setup as much as poss as a starting point to go from!

rufer...gsxr forks have 20mm (valve) internals...TLR are 25mm. I've fitted a cartridge kit in mine to make it 25mm again.

 

rufer...gsxr forks have 20mm (valve) internals...TLR are 25mm. I've fitted a cartridge kit in mine to make it 25mm again.

Good Point Rufer, I'll add it to the chart.

BTW My GSXR Radial Forks have my previous TL Internals as I had them valved and just right and found it easier to convert the forks than start again with the 20mm stock cartridges......

 

Just done a few updates

 

How about other wheel difference Sam - like the spacing between the bearings:
The stock spacer on 05/06 GSXR is 12.25mm and space between the forks is 154, making 129.5 (calculated) across the bearings for the GSXR wheel.
I make the TL wheel (measured) 136mm across the bearings; that would then make the OEM GSXR axle spacer to the right fork to be reduced by 3.25mm to centre the TL wheel - the left side takes care of itself of course.

So maybe another line to the table for the wheel bearing to bearing dimension.

 

Which GSXR forks were these...getting kinda crazy that sam had 3.5mm (from somewhere?)...I got 3.0mm...and theres you in the middle with 3.25mm :laugh

If it was 3.25mm to be reduced...that means your forks are closer together than mine by 0.125mm either side...which is getting pretty wee tiny (would classify that as a tolerance differnce somewhere)...but still a difference worth knowing about.

 

Wow thanks, very usefull !!