Twinpot Brake upgrade on 78 Skunk

[WillKo]

So the holes on the F3 rotors don't just need to resized from 6mm to 8mm they need to be redrilled entirely?

[salty_monk]

I see you recommend F3 rotors and they require drilling using a jig, what exactly is being done? Are you opening up the holes? Would rotors from a SV650S work?

No rotors from an SV650 will not work. Rotors from a CBR will work but they need a hub spacer behind them. The F3 ones need a new PCD or Bolt circle drilled between the original holes. The hub spacer is also the drilling jig.

[Suzukian]

Honestly, this thread should be a "STICKY".

[WillKo]

I see you recommend F3 rotors and they require drilling using a jig, what exactly is being done? Are you opening up the holes? Would rotors from a SV650S work?

[johnod]

My GS 1000 ST is now fitted with Salty Monk's conversion kit.
I used CBR 900 92-93 disks with SV 650 04 ? calipers.
It all came together very nicely and the weight saving is substantial!
The total weight came down by 1340 gr including the brackets in the kit.
I believe the kit looks fantastic with the larger disk better filling the 19" front wheel.

Thanks Dan!

I fitted them to my SN as well, they work well and look good doing it.

[John Kat]

And another picture IMG_3592.jpg

[John Kat]

My GS 1000 ST is now fitted with Salty Monk's conversion kit.
I used CBR 900 92-93 disks with SV 650 04 ? calipers.
It all came together very nicely and the weight saving is substantial!
The total weight came down by 1340 gr including the brackets in the kit.
I believe the kit looks fantastic with the larger disk better filling the 19" front wheel.

Thanks Dan!

[salty_monk]

I have PM'd you John. Yes Paypal works.

Dan

[John Kat]

Great Dan!
I will place an order asap.
Will Paypal be OK? If so please send me the address. Mine will be included on Paypal.
Thanks
John

[salty_monk]

John you'll have to swap to the CBR disks or someone used a set of Valkyrie ones back in the thread somewhere if you want something a bit more classic looking.

The SV650/DL650/EX650 all used the same caliper. The Kawasaki ones are the newest I think - from about 2009 to 2016. I think SV is 99 to 06 and DL is 2004-2011.

You can use the very newest EX650 ones I think (untested) but they use an 8mm bolt and are nissin not Tokico. I bought a set to try and was going to drill out the threads and re-tap to M10 fine. There is plenty of meat to do that. I still have them in a box somewhere....

My guess is about $125 to get them to you all in.

[John Kat]

Hi Dan,
I'm looking into the purchase of one of your front brake upgrade kits for my GS 1000 ST.
A couple of questions:
Do the SV 650 calipers work with the kit and if so what model year?
Does the kit work with the OEM slotted disks of the 1980 GS 1000?
Will you please send me a quote including shipment to France post code 47330?
Thanks
John

[johnod]

I wanted to bump this thread as a couple of people have asked me about it. I do have a limited number of bracket & spacer kits left (all powdercoated black as normal) but I likely won't be getting any more following this batch, not so much demand any more.....

I may have a set or two of rotors somewhere & a Master cylinder or two that would work well with either of the caliper types that work (Ninja/Concourse or EX650 / SV650 / DL650)

Good idea, I've given your email address to a couple of guys who have since gotten hold of you.

[salty_monk]

I wanted to bump this thread as a couple of people have asked me about it. I do have a limited number of bracket & spacer kits left (all powdercoated black as normal) but I likely won't be getting any more following this batch, not so much demand any more.....

I may have a set or two of rotors somewhere & a Master cylinder or two that would work well with either of the caliper types that work (Ninja/Concourse or EX650 / SV650 / DL650)

[JacobB5]

Set of 83 forks have arrived, pair of calipers from 01 Concours arrived, rotors for a CBR600F3 arrved, some various miscellany and I can swap out the front end on this '81 gs1100e for twin pots.

Stainless steel lines I just put on already made a noticeable improvement over the (no exaggeration) 41 year old brake lines (yep, had the original lines manufacture date 01/81 still legible).

[salty_monk]

Be interesting to see what you find out. I've not directly compared a G to an L as far as width from memory.