break-in/top speed?

PTB · Post by **PTB** » Wed Mar 24, 2010 7:47 pm

Just wanted to get a sense of break-in periods and how they affect performance.

I just ran a few errands over lunch and was in a rush to get back to work, so I took the limited access freeway.

On flats, I'm topping out at 67-68 mph (indicated). Slight grades up, low 60s, and slight grades down I was over 70mph (indicated). Only in a full tuck sometimes. I weigh approx 190-195.

I haven't seen numbers like that on my Buddy 125 ever. Is this normal for a bone stock setup?

I'm approaching 4500 miles on the odometer. Can this be explained as break-in? On the other hand, its a nice, cool, dry day in Minnesota (low 50s, sunny, low humidity). Could it just be that the buddy likes the cool air?

Cheshire · Post by **Cheshire** » Wed Mar 24, 2010 10:36 pm

Pooka was running exceptionally well today, about 5 mph faster than usual on all grades. Every once in a while she'll just seem to be feeling more alive than usual. I'm wondering if it's just the perfect air/temp/climate for the carb or something.

jfrost2 · Post by **jfrost2** » Thu Mar 25, 2010 2:05 am

I'd say 2000 miles itself is a complete break in. Hitting a indicated 68mph is really good and sounds normal. I dont think it'll go any faster than it does right now even if it had 8000 miles.

Post by **ericalm** » Thu Mar 25, 2010 2:58 am

You're definitely past the break in period, but your numbers aren;t too out of the ordinary.

The Buddys do like cool air, though! I've noticed better performance in all my scoots when the temps are in the mid 40s-low 60s.

Rob · Post by **Rob** » Thu Mar 25, 2010 3:15 am

I hit optimal performance on the Buddy just after 1000 miles. But, as many others have mentioned, top end speed is a function of many factors. Some have been mentioned, but wind speed/direction, tire pressure, load weight/drag, etc., can all factor in.

Rob

iMoses · Post by **iMoses** » Thu Mar 25, 2010 3:12 pm

I've notice that my Buddy likes the cool air too, and have been in the +70mph indicated range too and even had it to the mid/upper-70's going down a long steep hill. And I am 230lbs.

But on those days when the air is heavier, humidity is high I have had trouble maintaining 60mph going uphill (or 55mph during a series of uphill climbs). Though on a flat road I can easily be in the mid-60's.

chuck_theobald · Post by **chuck_theobald** » Thu Mar 25, 2010 3:32 pm

I managed 67 mph on a long straight stretch. Weather was hot, not too humid. This was well after break-in (~1800 miles). I was actually pulling away from a Stella!

I get a noticeable increase in power immediately after an oil change.

For high-speed traveling, I have read elsewhere in modernbuddy that the rating of your tires becomes important. I think the stock rubber is rated for up to something like 65 mph.

pyrocpu · Post by **pyrocpu** » Thu Mar 25, 2010 7:33 pm

Hmm... that's strange... on a gentle downhill, with my mid-level windscreen, and tuckage, I've seen an even, indicated 80mph on my Blackjack. 145# rider here...

Cheshire · Post by **Cheshire** » Thu Mar 25, 2010 11:57 pm

chuck_theobald wrote:I managed 67 mph on a long straight stretch. Weather was hot, not too humid. This was well after break-in (~1800 miles). I was actually pulling away from a Stella!

I get a noticeable increase in power immediately after an oil change.

For high-speed traveling, I have read elsewhere in modernbuddy that the rating of your tires becomes important. I think the stock rubber is rated for up to something like 65 mph.

J-rated, translates to 62 mph.

Vee Rubber's VRM-134 tires are wonderful, L-rated for 75 mph, and $30 each.