Author Topic: K75RT vs K1100LT  (Read 500 times)

Online beemuker

  • ^ SuperNatural Motobricker
  • Posts: 998
K75RT vs K1100LT
« on: January 13, 2022, 10:38:41 AM »
I sold the K1100LT I had . One of the issues [besides the heat] I had was my knees hit the fairing, which could get quite warm on the left side. I'm not excessively tall [6' ] but I guess I have long legs. I really like the 75 engine and am wondering if the 75RT has the same or similar knee clearance as the 1100LT.
  • Panama City, FL
  • '00 R1100RT,past tense :'93 K1100LT,,94 R1100RS K75s, Honda NC700, Suzuki Bandit 1200, bmw R75/5 Honda 750

Offline The Mighty Gryphon

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 6063
Re: K75RT vs K1100LT
« Reply #1 on: January 13, 2022, 10:40:21 AM »
I don't think you'll notice any difference. 
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline daveson

  • ^ SuperNatural Motobricker
  • Posts: 897
Re: K75RT vs K1100LT
« Reply #2 on: January 13, 2022, 07:59:28 PM »
I can't say much about k1100's.

Did it have one of the so called comfort seats, there are a few types, I think. I'm also over six foot and my knees were touching the knee panels. I put one of the more flat top like seats on, and that helped cause it sits back a little bit more.

I also had a ridiculous amount of engine heat on my legs when I got my brick on the road. I temporarily removed the gaiter between the fairing and the forks, I think that's when the problem disappeared, so l left them off.

You will see that some RT models also have air vents to cool your legs, then the knee panels also have slots to accept the air from the vents.
  • Victoria, Australia
  • Current;'85 K100RT~100,000km; four other bricks. Past; 1500 Vulcan, V Star 650, KLX 250(dirt bike) TT250(dirt bike)

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4328
Re: K75RT vs K1100LT
« Reply #3 on: January 13, 2022, 08:11:04 PM »
SSD has those vents on his K100LT and said they make no difference. He's thinking about converting to a naked.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline daveson

  • ^ SuperNatural Motobricker
  • Posts: 897
Re: K75RT vs K1100LT
« Reply #4 on: January 13, 2022, 08:20:12 PM »
I wonder if some of the internal baffles are missing, it's been a bit of a lucky dip with my bricks, what I find behind when I remove the fairings.

If he has those gaiters up front I think he'll find a big improvement if he removes them.
  • Victoria, Australia
  • Current;'85 K100RT~100,000km; four other bricks. Past; 1500 Vulcan, V Star 650, KLX 250(dirt bike) TT250(dirt bike)

Online beemuker

  • ^ SuperNatural Motobricker
  • Posts: 998
Re: K75RT vs K1100LT
« Reply #5 on: January 13, 2022, 08:28:48 PM »
I had mine apart for fork seals, and I put insulation blanket everywhere I could. It helped, but not enough for me.
  • Panama City, FL
  • '00 R1100RT,past tense :'93 K1100LT,,94 R1100RS K75s, Honda NC700, Suzuki Bandit 1200, bmw R75/5 Honda 750

Offline daveson

  • ^ SuperNatural Motobricker
  • Posts: 897
Re: K75RT vs K1100LT
« Reply #6 on: January 13, 2022, 08:36:33 PM »
The fairings should have baffles to direct engine heat out the side vents rather than continuing to the knee panels. This might have been what fixed my heat problem, I can't remember what I did that fixed it.
  • Victoria, Australia
  • Current;'85 K100RT~100,000km; four other bricks. Past; 1500 Vulcan, V Star 650, KLX 250(dirt bike) TT250(dirt bike)

Offline Snowman

  • ^ Proficient Motobricker
  • Posts: 254
  • UK & Iowa
Re: K75RT vs K1100LT
« Reply #7 on: February 22, 2022, 02:10:46 PM »
I have 165,000 miles on my K1100LT, many down Southern US and S.America and heat has never been an issue for me. Like other have said, maybe some panels had been removed.
1993 BMW K1100LT
1992 BMW R100RS
1985 BMW K100RS Turbo
1986 Suzuki GSXR750, GSXR1100, GSXR50

Offline The Mighty Gryphon

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 6063
Re: K75RT vs K1100LT
« Reply #8 on: February 22, 2022, 03:38:41 PM »
I have a K75RT that I've had in a lot of warm places like the desert Southwest in June and July.  Heat is just part of the price one pays for good weather protection from the cold and wet.  I guess it's the downside of being able to ride twelve months out of the year.

As far as knee room, both fairings are going to put the knee panels in pretty much the same place, so the riding position will be very similar.

I did seem to have good luck with a fuel cooler in the return line of my K75RT that does a good job of keeping the tank temperature only a couple degrees warmer than ambient.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline frankenduck

  • Adrninistrator
  • ^ Quintessential Motobricker
  • Posts: 4259
Re: K75RT vs K1100LT
« Reply #9 on: February 22, 2022, 04:08:46 PM »
The K75RT has about an inch or so LESS knee room. The K1100LT has the same main fairing but it is mounted farther forward from the steering head.

The other big difference is that K75RT fairing lowers provide better foot protection.  In cold weather your feet will be much colder on a K1100LT.
Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.

Offline frankenduck

  • Adrninistrator
  • ^ Quintessential Motobricker
  • Posts: 4259
Re: K75RT vs K1100LT
« Reply #10 on: February 26, 2022, 12:56:07 PM »
You can deal with the limited RT/LT knee room by using a customized seat that puts the rider seating position farther back. For example, I have a 34" inseam and on my K1100LT I have Russell Day long seat that lets me sit about an inch and a half farther back than the stock seating position.
Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.

Tags: