| Author | Message | ||
     S1w222 |
Looking to get a bit more top end out of my S1W, pretty sureI'm running factory pulleys but will check once I get back home, I top out at about 135mph, what size pulleys front and rear are people running ? Thanks Sam | ||
| Ratbuell |
I have stock (long-leg) pulleys on my S2. I have stock (short) pulleys on my S1W. You will kill the S1W-"ness" of the S1W, if you change pulleys. Trust me. I ride them back to back all the time. The S2 is relaxed, calm, slow, a cruiser (I have a thunderstorm top end, S1W ignition, and X1 cams in it). I rode my S1W today and hoo-boy is it a blast! Torque pulling out of turns, power no matter what gear you're in...that just isn't there with the S2 gearing. Trust me. If you want more legs...get a Baker six speed. You keep the bottom end, but get an overdrive. | ||
| Ratbuell |
Oh, and as of this morning's commute (sssshhhhh!), my S1W hits the yellow on the tach right around 120. hehe. | ||
| Firstbuell |
Rat, what are the your specific pulley ratios? | ||
| Jayvee |
You can try out the combinations available: http://woodsware.aciwebs.com/gears/ Here is another one: http://www.nightrider.com/biketech/accel_sim.htm (Message edited by jayvee on November 18, 2015) | ||
| Firstbuell |
what exactly are the combinations available? | ||
| 1313 |
Front 27, 29 Rear 55, 61 | ||
| Brother_in_buells |
This is a interesting read on the UK forum. http://www.ukbeg.com/forum/viewtopic.php?f=7&t=201 66 | ||
| S1w222 |
Thats a great article BIB, I'm gonna change to the 29 tooth front pulley and try it out, | ||
| Jolly |
I had to replace the motor in my S2 when I bought it. I used a thunderstorm motor with a 2 inch exhaust and a 29 tooth front pulley. I recently rode the bike on a 200 plus mile ride and found myself "hunting" for the right gear... Back and forth between 4th and 5th... Needing a 4.5 gear! So..... The 29 tooth was moving the motor out of its sweet spot for good riding.... Back to the 27 tooth and much happier! | ||
| 1313 |
FWIW, 29/61 was the stock S2 gearing. And yes, I know - errr... remember - that need for a 4.5 gear. The first ticket I got on my S2 was because I was in 5th gear after bouncing back and forth between 4th and 5th on my way up to the races at Elkhart Lake one year. A short while later I installed a 27 tooth front sprocket on my S2 and never looked back, 1313 | ||
| Jayvee |
There's more fronts easily found: Front 26, 27, 28, 29, 30 Rear 55, 61 | ||
| Lornce |
Gearing's more or less an issue of personal preference or taste. Short gearing gives you more torque through the gears but doesn't leave you many options once you're in top. Taller gears reduce your available torque in a given gear, but allow more relaxed high speed cruising. Personally, for street use, I generally prefer taller gearing. If I need more torque for whatever reason I'll just hold onto a lower gear a little longer and shift later. For me, the benefit of more relaxed cruise speeds is worth the trade off. Again, for me. YMMV. IMHO, Buells, especially tube frame Buells, have enough useful torque it's no real hardship to "make do" with taller gearing. fwiw, I ran 29/61 pullies on my old Thunderstormed '96 S1 track bike. It pulled to 6800 (race ignition redline) without any issue which would have been in the neighbourhood of 145-150 mph depending on the rear tire being used. Never felt the need for more torque on the track or on the street. In fact on the street I rarely used first gear. Was simpler to just pull away in second. Even with a passenger. fwiw II, I ran my S1 on the street with 29/55 pullies for a season and never really noticed many drawbacks. In fact it returned 1st gear to useful service. Again, you just adjusted your shift points accordingly in the lower gears. The ample available torque never really left me feeling the need for more urge than was available in the various gears. The street and track are very different environs. fwiw III: Ran my Thunderstormed S2 with 29/55 gears and I liked it. Again, for street use there was plenty of urge in the lower gears if you just held onto them a little longer. The novelty of low drama high speed cruising was kind of neat. It was possible to cruise along at 100mph with only 4k rpm showing on the tach. Granted, there aren't many places to make use of gearing like that without getting into serious trouble with the law, so maybe it's best to leave it to the Europeans. Here's the pertinent part of that British thread. "The different combinations are: A = 29 TOOTH B = 55 TOOTH This is the "normal" UK spec and gives an overall gear ratio of 3.034. Top gear - 24.02 mph/l000 rpm giving a theoretical top speed of 163 mph at 6800 rpm. Fourth gear - 20.36 mph/1000 rpm - maximum speed 138 mph. Third gear - 16.80 mph/1000 rpm - maximum speed 114 mph. Second gear - 12.19 mph/l000 rpm - maximum speed 83 mph. First gear - 8.93 mph/1000 rpm - maximum speed 61 mph. At 80 mph in top gear the engine is running at 3300 rpm. A = 27 TOOTH B = 61 TOOTH This is the "full" US spec and gives an overall gear ratio of 3.615. Top gear - 20.16 mph/l000 rpm giving a theoretical top speed of 137 mph at 6800 rpm. Fourth gear - 17.08 mph/l000 rpm - maximum speed 116 mph. Third gear - 14.10 mph/1000 rpm - maximum speed 96 mph. Second gear - 10.23 mph/l000 rpm - maximum speed 70 mph. First gear - 7.49 mph/l000 rpm - maximum speed 51 mph. At 80 mph in top gear the engine is running at 4000 rpm. A = 27 TOOTH B = 55 TOOTH This is the US engine sprocket with the UK rear wheel sprocket to give an overall gear ratio of 3.259. Top gear - 22.36 mph/l000 rpm giving a theoretical top speed of 152 mph at 6800 rpm. Fourth gear - 18.95 mph/l000 rpm - maximum speed 129 mph. Third gear - 15.64 mph/1000 rpm - maximum speed 106 mph. Second gear - 11.35 mph/1000 rpm - maximum speed 77 mph. First gear - 8.31 mph/l000 rpm - maximum speed 57 mph. At 80 mph in top gear the engine is running at 3600 rpm. A = 29 TOOTH B = 61 TOOTH This is the UK engine sprocket with the US rear wheel sprocket to give an overall gear ratio of 3.366. Top gear - 21.66 mph/l000 rpm giving a theoretical top speed of 147 mph at 6800 rpm. Fourth gear - 18.36 mph/1000 rpm - maximum speed 125 mph. Third gear - 15.15 mph/l000 rpm - maximum speed 103 mph. Second gear - 11.00 mph/l000 rpm - maximum speed 75 mph. First gear - 8.05 mph/l000 rpm - maximum speed 55 mph. At 80 mph in top gear the engine is running at 3700 rpm." |
