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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: allisonmo2 on August 24, 2016, 06:35:23 PM

Title: 2 up question for people that have owned/ridden k75 and k100
Post by: allisonmo2 on August 24, 2016, 06:35:23 PM
I am looking for a K bike currently. My initial thought was to go right for a k100, since most time in the saddle will be 2 up, figure 400 lbs +/- between both of us and a bit of gear (i'm a fatty at about 250, give or take a burger). What are your thoughts on a 75 vs a 100? Most trips will probably not venture too far, maybe 100-200 miles each way, but there are a looooot of hills around me and where I plan on riding.

Thanks Ya'll! :riding:
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Chaos on August 24, 2016, 07:32:30 PM
A K75 would be adequate, but a 100 would be much more adequate.   Seems to me being 2-up on a K75 dogs is down much more than the same on a K100. 
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Laitch on August 24, 2016, 07:39:10 PM
Seems to me being 2-up on a K75 dogs is down much more than the same on a K100.
My dogs be more down 2up yo.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Brad-Man on August 24, 2016, 07:59:22 PM
I did my due diligence before buying my K100.

I am in the same boat you are - I'm 250 and my 5'6"  wife is 140.

Since I have a couple of RD350's for solo riding and the K is for both of us as a proof of like deal w/ the wife I chose the K100 and have been happy w/it.

Of course the fact that I got it for $1-2k less than any K75 around helped...

That has allowed me to buy good LED headlight, aux lights and Skene harness and extra LED brake/running lights that I will be installing before I put her on the back.

She be precious to me.

If it were just for me or both of us weighed ~150 lbs less the smoother and lighter weight K75 would have gotten the nod.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Laitch on August 24, 2016, 08:07:55 PM
since most time in the saddle will be 2 up, figure 400 lbs +/- between both of us and a bit of gear
Thanks Ya'll! :riding:
How about an 1100 (https://allentown.craigslist.org/mcy/5700819096.html), shaft drive, bags and all?
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: allisonmo2 on August 24, 2016, 08:31:14 PM
brad, exactly what we were thinking. my dr350s is a fun ride, but not for more than 20 miles on pavement, and never with both of us. an old rd350 or 400 sounds like a hoot and a pinger on the road would be fun, but fun for one.

laitch, 2 reasons - one cost. she seems willing, but that still remains to be seen. her furthest two wheeled adventure so far has been about 10 miles. don't want to double up my initial investment, even if i can recoup it with a sale if it came to that. happy wife, happy life. if she doesn't like mileage, it will just be me commuting, running errands, and the occasional small day trip. no need for a bigger bagger. secondly, a nice blue 100rs, is one of the prettier bikes i have seen. even with a 25-30 year old bike, they clean up real nice. kinda have my heart set, and i think a 100 is where i'll end up. seems like they fetch a lot less around me than the 75's do. no idea why. geographic oddity i assume...
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: bocutter Ed on August 24, 2016, 09:37:01 PM
IIRC, the GVW of a K75 is 450kg or 1000lb. If the bike weighs in at about 520lb you've got 480lb to work with ...
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: allisonmo2 on August 24, 2016, 11:05:39 PM
Not just the weight capacity, but more engine tractability, overall comfort, passing power, all up to about 1500ft elevation. Things like that.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Laitch on August 24, 2016, 11:10:32 PM
AHNC
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: allisonmo2 on August 24, 2016, 11:44:12 PM
All hat no cattle? Pardon my ignorance...
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: F14CRAZY on August 25, 2016, 06:15:56 AM
Check the camping thread for my write up on carrying capacities and power:

http://www.motobrick.com/index.php/topic,8793.msg68623.html#msg68623 (http://www.motobrick.com/index.php/topic,8793.msg68623.html#msg68623)

Keep in mind that in my calculations I entered my weight as 150 lbs and my wife's as 108 or so
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: F14CRAZY on August 25, 2016, 06:17:48 AM
What are the GVWR's for the K100 and K1100?
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: The Mighty Gryphon on August 25, 2016, 11:39:04 AM
I've got two 75's and 4 valve 100 that I alternate for 100 miles/day commuting.

The power of the 100/1100 is SUBSTANTIALLY more than the 75.  My 75's are fine for one up riding and are a pleasure to cover long distances on when going solo.  The K75S is especially light and easy to flick around.  However...

The extra power of the 100 makes it feel like it isn't even working when two up, this is something that the 75 can't do in all situations. 

The 4v K100 weighs more than a K75, but the seat height is lower so it is easier to handle at a stop or at low speeds.  I suspect the K1100RS is the same.  I would look for one of those models.  Put one of those big comfort seats or a russell day long on it and you're good to go.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: duckhawk on August 25, 2016, 07:31:43 PM
K100 or K1100 all the way.

You need the power with 2 up.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: gpcrane on August 26, 2016, 08:01:13 PM
I have done short 2 up weekend trips on my K75s.  It works since that was all I had.  On the flats I still had decent passing power and even in some of the costal mtns. I was still able to pass and never felt like the bike was maxed out.  Between the Mrs. and myself we are just over 300 lbs. and not a lot of gear.  On a longer trip I would want more of a bike for 2 up.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: F14CRAZY on August 26, 2016, 09:33:21 PM
Consider that a K75 makes more hp than any stock airhead. People toured fine with R75's with Windjammers and Krauser luggage. Or the R80/100RT.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: TrueAce on August 27, 2016, 07:04:02 PM
The ranking order for two-up riding is 1) K1100, 2) K100, 3) K75. I have each as an RS/S models, and the best two-up is the 1100,plus, it's only 20 years old.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Chaos on August 27, 2016, 09:05:09 PM
Consider that a K75 makes more hp than any stock airhead. People toured fine with R75's .......

Good point. 
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: The Mighty Gryphon on August 28, 2016, 10:58:54 AM
Although the K75 makes more hp, IMO the old R models were known more for rather "sedate" touring than the K models.  As such, the 75 is fine for solo touring(I have done about 15k miles on mine in 2 1/2 years), but I wonder how the throttle would respond when going uphill two up with a load of gear at freeway speeds. 

I know my 100 has dumptruck loads of torque at any speed I am willing to go and would hardly notice the load or the grade when I ask for more speed. 
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: TrueAce on August 28, 2016, 11:09:40 AM
My only complaint, at any speed or any grade, is the hellfish heat on my thighs in really hot climate, you can literally get burn blisters.
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: F14CRAZY on August 28, 2016, 12:01:35 PM
My wife and I do 80 mph fine with camping gear but I wright about 150 lbs and she's about 110. And we haven't been like up mountains. You can always downshift
Title: Re: 2 up question for people that have owned/ridden k75 and k100
Post by: Martin on August 28, 2016, 04:54:57 PM
You can virtually tour on anything you just need to adapt to the bike. Although having said that, if you go too small and gutless some car drivers will try to run you over. :yow The smallest bike I have ever done distance on was a 100cc Ducati Mountaineer two stroke 400 Km in pouring rain.
Regards Martin.