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Old 06-18-2013, 08:14 AM   #1
red tag OP
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Late model R100RS vs R100R

I've been considering a post '90 R100RS but noticing that the R100R has the paralever and the RS still used the older monolever rear suspension, I was looking for some input as to fitting out the 100R with the RS fairing and tank or is there an advantage to the older style suspension? I currently have an
R100 GSPD, like the paralever, but figure BMW fit the monolever to the RS for a reason. Thanks
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Old 06-18-2013, 09:03 AM   #2
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intresting

intresting question.you'll be sure to get an answer here.
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Old 06-18-2013, 09:08 AM   #3
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Monolevers are my favorite airheads.

R's? I am not personally a Paralever fan. They make the wheelbase too long. They weigh more. The drive shaft U joints are more likely to go bad. The driveshaft rubber cush-drive is way more likely to fail over the spring/cam setup on a Mono. The final drive input shaft seal is very likely to leak leading to drive shaft rubber issues. The tranny output seal is too to a lesser degree. The paralever bearings wear out on a very regular basis. But they do have less drive shaft effect. I grew up riding beemers so I am use to that.

And then there are the R's forks. If the forks don't already need new tubes for flaking and pitting chrome, they soon will. I don't understand the need for a rubber mounted fork brace? I love that they have teflon bushings for less stiction but they do need to be replaced on a regular basis. I would say about every 40K miles.

I have always liked the looks of cross spoked wheels but I did not realize until recently that they are even heavier than the Mono's wheels and the mono's wheels are too heavy IMO. That and the cross spoke wheels are rarely even close to straight right our of the crate!

Plus I like the looks of the Mono's better but that is just me.
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Old 06-18-2013, 09:47 AM   #4
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Thanks, any difference in handling between the two?
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Old 06-18-2013, 12:34 PM   #5
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Quote:
Originally Posted by red tag View Post
Thanks, any difference in handling between the two?
The R's feel plusher to me mostly because the Paralever is letting the suspension work more under hard acceleration. That and that longer wheelbase IS noticeable IMO. I need all the cornering clearance I can get and shorter wheelbase bikes have more, all other things remaining equal, for not having to lean over as far in the same turn. R's are more stable. Some might like that. I don't but I like twin shock R65's and short wheelbase /5's for the same reasons. R100R forks should work a bit better for their teflon bushings and real top tree but the top tree can be replaced on a Mono. Plus a Mono has a rigidly mounted fork brace. It mostly bowls down to that Paralever versus a Monolever. They just aren't worth the trouble IMO. I prefer Monolevers for their handling and reliability. A lot of people do say that the R's and the like are the best handling airheads but I am not one of them. I think LS's and Monolevers are.

supershaft screwed with this post 06-18-2013 at 12:46 PM
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Old 06-19-2013, 06:31 AM   #6
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I really like my R100R. I would prefer that it was a monolever but other aspects make the bike and enjoyable ride. One thing nobody mentioned are the front brakes. I had a '94 R100GSPD, even with the caliper upgrade I think it was one of the worst braking bikes I ever had. The R100R with the duel 4 puck system works fantastic.
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Old 06-19-2013, 06:46 AM   #7
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Old 06-18-2013, 09:57 AM   #8
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Valid observations

Another example of why newer isn't always better! The one thing I have noticed over the years is newer more often than not means lower quality components or under engineered specs. The reason I purchased my first BMW twin in 1987 was because it was a simple intellegent design that was easy to work on, saving me money in labor costs and it was over built so I figured it would last years! I rode that first BMW a 1982 R100 for over 16 years. Yes newer bikes handle better are faster and I have owned some nice newer bikes, but I have a couple of early 80's R - bikes and they are such a joy to tinker with. Parts are expensive but the bikes are easy to restore.
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Old 06-18-2013, 09:59 AM   #9
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Handling

Most agree the R100r is probably one of the best handling airheads ever built. And honestly, I would probably have one if available for the right price despite some of the negatives mentioned above. I used to love the idea of the spoked tubeless rims but now the thought of having to need one rebuilt just scares me!
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Old 06-18-2013, 12:12 PM   #10
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I have one of each and like the one that I am on at the time better. They both work fine. I love them both, but there are some minor differences.

You can put a RS fairing on any of them. I have seen pictures on this site with a RS fairing on a Paralever R....
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Old 06-18-2013, 12:31 PM   #11
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Quote:
Originally Posted by supershaft View Post
Monolevers are my favorite airheads.

R's? I am not personally a Paralever fan. They make the wheelbase too long. They weigh more. The drive shaft U joints are more likely to go bad. The driveshaft rubber cush-drive is way more likely to fail over the spring/cam setup on a Mono. The final drive input shaft seal is very likely to leak leading to drive shaft rubber issues. The tranny output seal is too to a lesser degree. The paralever bearings wear out on a very regular basis. But they do have less drive shaft effect. I grew up riding beemers so I am use to that.

And then there are the R's forks. If the forks don't already need new tubes for flaking and pitting chrome, they soon will. I don't understand the need for a rubber mounted fork brace? I love that they have teflon bushings for less stiction but they do need to be replaced on a regular basis. I would say about every 40K miles.

I have always liked the looks of cross spoked wheels but I did not realize until recently that they are even heavier than the Mono's wheels and the mono's wheels are too heavy IMO. That and the cross spoke wheels are rarely even close to straight right our of the crate!

Plus I like the looks of the Mono's better but that is just me.
I have a GS paralever. 122000kms and has not caused me any grief. I ride it reasonably hard,dont use the brakes when yahooing but the gearbox gets a good work out. It will redline in every gear.
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Old 06-20-2013, 12:31 PM   #12
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IMHO the mono is the better handling bike. I totally agree with SS when it come to the mono's.
The R100R with its paralever is smoother but when accelerating in corners it pulls the rear down a bit which makes you loose ground clearance

The mono's lift the rear when accelerating which makes the bike steer into a corner and gives more ground clearance.
The surprises start when you close the throttle in a corner and the valve covers hit the pavement hard That's when the adrenalin comes

The forks of the R100R are much smoother than (most) mono forks.
But like SS told they do have bad chrome. And a lot less wheel travel !!!!!!
The damping system on both forks is far from good but could work good enough for most riders.

The front of the R100R is to high and makes the bikes drop into tight corners and also makes the bike run to the outside of long fast corners. Putting the fork tubes trough the triples helps a lot to improve the handling. But you cant put them trough far enough because the handle bars are restricting that.

On my girlfriends R100R I used handle bar raisers to make room for putting the tubes 40 mm trough the triples and used a much longer shock on the back than stock to improve the handling even more.

In one of my mono's I mounted a R100R fork. Those brakes are better than the mono's brembo's. But there is a big difference in the rotors. The stock mono rotors have a more aggressive bite than the R100R semi floating rotors.
The stock mono brakes are more than good enough IMO. Its the tire that can't handle better brakes.

When you would compare the torque curves of the two bikes its great to see the difference.
The R100R has a totally different curve compared to the R100 mono.
The lines of the mono are much smoother. Which makes the bike smooth trough the whole rev range.
If you are riding together with guys on the R100R and on the mono's look at how often the brake light comes on on the R100R compared to the mono. The engine braking is a lot better on the mono !!!!

I changed the the carbs from 40 to 32 on my girlfriend R100R which made the bike faster from the start and helped the engine braking a bit but not enough. The shape and size of those heads and valve sizes are the same of those bikes except the difference in carb month. The final drive ratio might have been the next thing on the "to do list" but she sold the bike and bought a mono. And now she is chasing big sport bikes in corners which is so much easier on the mono

They are both great bikes and its all a personal thing.(But I would always go for the mono)
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Old 06-20-2013, 09:28 PM   #13
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I rode a few Mystics, which I assume feel like the (modern) R100R, fun bike but it felt heavier and less nimble than my Mono.

There's some good comments here, but to me the Para airheads look like a stop gap between the future oilheads and the old airheads, kind of wonky design. For me anyway, that means something.

Mono love

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Old 06-20-2013, 10:37 PM   #14
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Upgrade the Shockie ( I went for YSS ) ... and then you really can appreciate the handling of a mono.

I have two mono's .. so I guess I have twice the love.

Oh Zodiac .. I don't think you have posted much since you up grade to the 336 Cam .. like to know how all that went
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Old 06-21-2013, 05:42 AM   #15
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Quote:
Originally Posted by R100LT View Post
Upgrade the Shockie ( I went for YSS ) ... and then you really can appreciate the handling of a mono.

I have two mono's .. so I guess I have twice the love.

Oh Zodiac .. I don't think you have posted much since you up grade to the 336 Cam .. like to know how all that went

I went for a Progressive, completely planted and no hop on acceleration when compared to the stocker.

ps for R100LT:

http://www.advrider.com/forums/showp...0&postcount=52
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