1 K1100 front end on K100 Thu Mar 27, 2014 11:29 am
Snod Blatter
Life time member
Hi all,
The actual question - Has anyone done this themselves? I'm mostly baffled by the K1100's front brake master cylinder and throttle pulling assembly, which is so different from an 8v K100 that nothing is interchangeable. Apparently I need an 1100 throttle tube and grip to go with the 1100 m/c, this is fine but my original grips are heated and I'd like to keep them. Looking around it seems the 1100 tube is longer and this is why 1100 grips are needed, am I correct? Could I not just cut the tube down and fit my earlier grips? According to this most excellent post I'll also need the indicator switch, which I can understand. Am I missing anything else?
The background, for those wondering - My K100RS has badly scored stanchions and probably incorrect fork springs, I'm still trying to get the cap off the top of the forks to have a look (I'm sure some of you will understand this!). To remedy this is around £200, and it still leaves me with the rubbish front brakes. I have found a man willing to sell me a K1100LT front including wheel/discs/forks/yokes/mudguard/axle/ABS sensor (if it can be made to work on the original system??) and one caliper (d'oh) for £200 plus whatever a courier demands. The draw of Marzocchi cartridge forks and 4 pot calipers is strong, and I can sell the old ABS discs and the rare 3 spoke K100 8v front wheel and possibly end up in profit. I understand that I'll probably need some bits of brake line making up but the hardest bit by far is the fitting the later master cylinder and throttle malarkey.. Has anyone done this? Would it be worth the hassle? Reviews of the K1100 at launch talk about how much better the forks were than earlier efforts, but people don't seem to be falling over themselves for these bits nowadays. And yet, to me it looks like an obvious way to go.
Thanks for any help/opinions/pointers!
The actual question - Has anyone done this themselves? I'm mostly baffled by the K1100's front brake master cylinder and throttle pulling assembly, which is so different from an 8v K100 that nothing is interchangeable. Apparently I need an 1100 throttle tube and grip to go with the 1100 m/c, this is fine but my original grips are heated and I'd like to keep them. Looking around it seems the 1100 tube is longer and this is why 1100 grips are needed, am I correct? Could I not just cut the tube down and fit my earlier grips? According to this most excellent post I'll also need the indicator switch, which I can understand. Am I missing anything else?
The background, for those wondering - My K100RS has badly scored stanchions and probably incorrect fork springs, I'm still trying to get the cap off the top of the forks to have a look (I'm sure some of you will understand this!). To remedy this is around £200, and it still leaves me with the rubbish front brakes. I have found a man willing to sell me a K1100LT front including wheel/discs/forks/yokes/mudguard/axle/ABS sensor (if it can be made to work on the original system??) and one caliper (d'oh) for £200 plus whatever a courier demands. The draw of Marzocchi cartridge forks and 4 pot calipers is strong, and I can sell the old ABS discs and the rare 3 spoke K100 8v front wheel and possibly end up in profit. I understand that I'll probably need some bits of brake line making up but the hardest bit by far is the fitting the later master cylinder and throttle malarkey.. Has anyone done this? Would it be worth the hassle? Reviews of the K1100 at launch talk about how much better the forks were than earlier efforts, but people don't seem to be falling over themselves for these bits nowadays. And yet, to me it looks like an obvious way to go.
Thanks for any help/opinions/pointers!
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1989 K100RS SE ABS 8v VIN: 0149214
Others: 1.5 x CBX250RS-E, '94 CB250, '95 TRX850, '16 Z250SL, '01 R1100GS