| Author | Message | ||
     Jimjib |
I have a 5 speed 94 883 (now 1200) that I am using in an offroad application. I want to lower 1st through 4th and get a taller 5th. Is there an after-market supplier out there anywhere? | ||
| Panic |
Yes, Andrews and Baker. | ||
| Jimjib |
thanks | ||
| Fullpower |
think this through carefully. 4th and fifth gear are about 18% apart. consider the torque band of your 1200, and the actual road speed at the shift point. now tell me why you want a "taller " fifth gear? your 1200 will wheelie over backwards with the stock 883 gears, and is capable of 135 mph in top gear. how much wider span of ratios do you reallly want? Baker can make a 6 speed for you if you want to spend the money. | ||
| Blake |
Offroad. He wants lower gearing for offroading methinks. Sounds like a Baker 6-speed with a higher ratio final drive setup would do the trick.  Best of both worlds? | ||
| Panic |
Rather than "lower" and "taller", how about comparisons with the actual ratios? | ||
| Panic |
So far I've plotted 5 different gear sets using various combinations of Andrews parts, and another 6 using the SportGear high-gear set (in addition to 2 Baker ratios, and the original gears). Total: 13 alternates. (Message edited by panic on November 01, 2005) | ||
| Natexlh1000 |
Perhaps a lower ratio primary combined with a baker six speed? | ||
| Light_keeper |
How about wheel / Tire size changes? Is that an area that could be played with?  | ||
| Fullpower |
jimjib, i am intrigued with your project. what frame are you using? also very curious as to what bits you have removed to lighten the sportster. my 1998 XLH is right at 480 pounds wet, and i dont know what else to cut off the bike. | ||
| Jimjib |
[img]http://scorpion.smugmug.com/photos/41189312-M.jpg[/img] [img]http://scorpion.smugmug.com/photos/41198130-M.jpg[/img] [img]http://syddog.smugmug.com/photos/40116549-M.jpg[/img] The spacing of all the gears is just fine. I just need a numerically larger 1st, to go slower in the technical stuff. I am thinking the best way to do it is to drop a tooth or so on the primarly..and then just change the 5th gear...if that is possible. 5th gear right now is good enough for a smooth 65 on the freeway.. but I dont want to run any higher rpms than it is right now. Unfortunatly, this is all seat of the pants because I dont have a tach. This bike has been 10 years in the making (its a long story) but its now on the road and trail and is working better than I ever expected. In recent years I have had 3 bmws (r100gs, r1100gs r1150gs adv)...a ktm 640 adv and dl650.........this thing blows them all away in my opinion. | ||
| Jimjib |
Not sure why the pics didn't post | ||
| Peter |
Jimjib, You'll need to write it like this to get them to work. \imagelink{http://scorpion.smugmug.com/photos/41189312-M.jpg} | ||
| Bigblock |
AWESOME! | ||
| Jimjib |
Looks like it doesnt come up that way either..strange. | ||
| Wyckedflesh |
   Have you thought of using an XB12 primary gear at the crank? | ||
| Jimjib |
Thanks for fixing that. I will call Andrews and Baker tomorrow and see what they recomend. | ||
| Jimjib |
Fullpower, its a c&J frame that was streached one inch and with 2 degrees added to the rake. Also, the shock mount, engine mounts and the front down tubes were altered to get this engine in and clearance for the 21 in front wheel. All up with a 1/2 tank (4 gal aluminum) of fuel she weighs 454. Not light but 100 lbs less than my 1150 bmw (dry) and about what my dl650 weighs. I dont know how I could make it much lighter...its pretty sparse as it is. There is just no getting around that heavy motor. My dl650 has long travel xr400 forks on it, 21 in ktm 950 hub with sun rim and a wilbers rear shock that has 70% more stroke than the stock shock. The harley is still much better in the dirt and...i prefer it on the street too. I really never though it would work this good...I just stumbled into a good combiniation. | ||
| Cerbero |
very. very. nice. | ||
| Blake |
The 5th gear is straight through via mainshaft only, no gears to change. You'll need the 6-speed to accomplish what you are seeking, or a 5-speed overdrive if they make one. | ||
| Henrik |
That is so cool Jim. Great work. Must be a hoot to ride. Henrik | ||
| Jimjib |
What I really like about this bike is the riding position. The tall engine creates lots of leg room so its very easy to go from a sitting to standing position. Since the footpegs are farther back and the bars have a big rise, you can be in the standing position all day long with comfort. I am 6'2" but a buddy of mine who had a ktm 640 and a GS is around 5'11....and he has the same glowing opinion of this bike as I do. Enough so that I think he is going to build one himself. Anyway, thanks for all the advise. | ||
| Panic |
"The spacing of all the gears is just fine. I just need a numerically larger 1st, to go slower in the technical stuff." Numerically larger 1st is changing the spacing of the gears. "I am thinking the best way to do it is to drop a tooth or so on the primarly" Changing the primary drive (or rear sprockets/pulleys, or wheel diameter) changes all gears at once, in the same proportion. " ..and then just change the 5th gear." 5th gear isn't a ratio. I'd be very surprised if a call to Andrews doesn't result in 1 of 2 possibilities: 1. you get John Andrews, who has a massive ego and no patience - will answer a direct question accurately if it's asked the ways he wants. 2. you get Buffy-the-receptionist, who will just read you the catalog descriptions. My suggestion: read the Andrews data and plot your own choices - you can move 1, 2, 3 & 4 around a bit. Sounds like you want wider spread between 1st and 5th, but no overall ratio change (you can't do this with a primary change unless you go to overdrive, which is $$$). My first choice would be a SportGear high-gear pair + whatever Andrews choices look good. The strongest 1st gear you can make looks like 3.05-1. (Message edited by panic on November 02, 2005) | ||
| Glitch |
Maybe? | ||
| Lornce |
Now THAT's cool. HD, are you taking note of this? Have someone in marketing go look at big dual-sport sales numbers.... | ||
| Jerseyguy |
Sweet ride! Good job. | ||
| Blake |
Thanks for the education Glitch! That is a neat option and looks to be just what Jim is looking for, just leave the final drive as is and he'll get to keep 5th gear and lower all the rest. Cool stuff! | ||
| Bomber |
I LOVE that bike, Jim!! too cool! | ||
| Fullpower |
WOW. nice project there jim. very cool. how about another right side pic? is that a 17 or 18 rear? | ||
| Jimjib |
Glitch.. I didnt see that..thanks. I actually talked to mr Buell years ago and at that time, he didnt think the market was big enough to get into but that may be different now. Bmw finally came out with a real off road bike, the hp2 and they all sold out before they hit the country...at over $22,000. I think Buell could do the same thing. Thanks for the kind words too. |
