Final Drive Transplant _ Kudos 2 Chop!

[John]

Originally posted by malber
Is there a post somewhere that describes why this is a beneficial mod?

Yeah there is, it is at the very beginning of this thread. It is to increase fuel economy, and save some wear and tear on the engine. I'm pleased with mine.

[xschop]

benefit

the 750 final drive doesn't get hot either like the xs11 can I have noticed this summer....

[pggg]

Look, this mod is a great idea for a more relaxed cruise, Chop is the one who sussed it and did it from the start, BUT - yeah there's always a BUT with these things - it'll kill your street performance due to an overgeared first gear and it'll cause MORE wear and tear on your lower two gears, If you don't mind Harleys and their like whipping your once legendary XS1100 from a standing start - then no worries. Also any fuel economy savings are simply peanuts in the overall picture. Sorry guys.

[MAXIMAN]

If you read the entire post I showed the increase in mpg I realized.

I gained 6 mpg at 70 mph. Went from 34 mpg to 40 mpg.

[pggg]

This'll piss Max off I ran my bike on taller gearing for over a year and got more or less the same mpg as stock ON AVERAGE, every tank fill I checked the mpg with calculater down to the final point kilometre to litre, there's no discernable difference beleive it or not!! Head winds and hard out riding soon knock any advandage of the taller gearing out the window. I'll say it again, you fellas are gonna agree with me eventually!! Sorry again for being a smartass

[MAXIMAN]

Hahahahahahaha

NOW NOW "P triple G"...play nice

You must lay awake at night trying to figureout ways to make every one else as miserable as you. ...but what's the old "maxim"? (pun intended) .......

Misery loves company...

[trbig]

No worries Pggg... If everyone agreed in here it would be boring. Plus.... most everyone likes a smartass compared to a dumbass!


Hush Kat!! No comments from you.

Tod

[xschop]

max's mileage

Max's 1200 cc motor, power boost is really the idea situation for this mod....

[MAXIMAN]

No doubt my motor doesn't even realize the bike been geared taller. But honestly Chop the 291 ratio didn't hurt your stock bobber either.

I've run three tanks through my full dresser and my mileage ahs increased about 5 to 6 mpg. Normally I get 32 to 33 ...now I get 38 to 40 mpg.

[trbig]

it'll cause MORE wear and tear on your lower two gears

I could see how it may be a bit harder on the clutches starting out, but due to less power being able to actually be applied to the gears themselves, it couldn't be any harder on them. After starting off, you shouldn't have any other noticeable differences. If you normally shift at 3 or 4 K, you still will... you'll just have a little more MPH when you get there than you used to.

I went to make a 45 mile or so run tonight... ended up being a beautiful evening and ran @ 230 miles instead. Keeping up with traffic on the freeway, the bike has to run steady at @ 5,000 rpm at 80 (Or so). I want to do this mod. I don't care about racing Harleys at the stop lights, and it honestly doesn't matter if it reduces my fuel usage or not. But it doesn't take a rocket scientist to figure out which two motors will be in better shape at 100,000 miles... the one running 5k or the one running lower rpm. That leaves me more riding time in between my beasts heart transplants.

Tod

[MAXIMAN]

Precisely! The added wear will be on the clutch. Not on the gears.

And when needing to pass some one quickly at 55 now I down shift...whereas before it wasn't until 45 to 50 that I would downshift in same situation.

It's really is no big deal.

I think the reason "some" people are afraid of it is is the same reason cro-magnon feared a lunar eclipse...

[trbig]

Sooo...

You're saying that to do a final drive mod... will bring on the end of the world??

All I can say is.... you all better get your s%$t in order! lol..

Tod

[pggg]

I must explain better why I'm so iffy on raising the elevens' gearing with the taller 750D ratio, like I said long ago, if you drop the elevens revs by anything OVER 400-500 revs, you're simply not gonna be able to run your eleven at FULL THROTTLE in first gear. To me, that's a big bummer, having a big grunty motorbike that won't operate at full performance down low just doesn't turn me on!! It's not simply a case of bunging on a 750 final drive and carrying on as normal, you're gonna need to split your engine sooner than later and beef up 1st gear in conjunction.(trust me ) Just trying to show all sides of the story guys.

CHEERS for now, hope to annoy ya's all again next year Have a good one.

[MAXIMAN]

Originally posted by pggg
not simply a case of bunging on a 750 final drive and carrying on as normal, you're gonna need to split your engine sooner than later and beef up 1st gear in conjunction.(trust me ) Just trying to show all sides of the story guys.

PGGG---->
.............<-----ME

I need some Tylenol...

[Pat Kelly]

If a 750 can handle the (final drive) gearing then the 1100 should also.

FWIW I don't plan on doing the mod on either of my XS's