MOPED ARMY

Gearing fo' sho'. What do you have on there now?

They are fairly heavy bikes. You could try opening the intake and exhaust ports..I have not seen the Zen pipe headers up close, so I'm just guessing that it would need to be matched to the cylinder.

38 is pretty good for that bike with only a new exhaust and upjetting. With the gearing, you will have to experiment as you will either lose top end, or lose bottom end depending on what you're going for.

ill have to check the gearing when i get home ... luckily i think i have some larger and smaller rear ones sitting in my baement.

the header is matched to the cylinder :)

and damn right those are heavy bikes! the thing is impossible to move into the basement and a bitch to get on my porch...

i toss my garelli gran sport around!

thanks for the info - it'll give me a chance to clean up the rear brakes and look over my bearings. ill play around with it

i wonder if ill need a bigger chain?

any suggestions on a good gear ratio? Ill check the rear gear and see if its near 38, no idea what the front gear is... i hear 16-18/38-45 is a good combo

A 15:15 on my bike, along with a Mamba pipe, stock cylinder-38.9mm, and 11 X 44 gearing had me somewhere in the range of 35 mph before I kitted it. Granted, it was on a lighter bike, but it was/is a hill-eater. Topped out quick, though.

The stock cylinder bore on my Sebring is 40.8mm, and with a Mamba, 15:15, and 9 X 45 gearing tops out somewhere below 40 mph. Not as much as a hill-eater, but not a speed-demon. It's right in the middle (it could use a little finagling).

I have another Sebring, completely unmodded, that has 10 X 44 (I think?). I'm not sure of the bore, smaller than 40.8mm, maybe 38 or 39.something mm. It's a pretty ballzy little machine as well (even with a 200 lbs dude on it). Has very similiar torque, but less up top (tops out about 30 mph).

Hmm, dunno. All three bikes were geared low when I got them. It's a Minarelli thing, I guess.

Oh, and Tomtom, most Minarelli v1's are equipped with a 9, 10, 11, 12, or very rarely, a 13 tooth front sprocket. I think the 16/18 dealio you are thinking of is for Puch. Once you know what yer front is, then you can calculate what you would need for your rear.

Sebrings FTW!

until it flies off.

;)

sweet deal, lots of great info.

i found a nice 9 tooth sitting around... so i'll probably slap that on the front.

When it comes to opening the intake and milling the head... could any short explainations or links be given?

I think I'll look at 15:15 pbhg ... i really low the tuning options that carb gives. and the SHA looks like it gets lean randomly...

minerelli take well to light porting too!

Tomtom,

Wondering how the sebring is turning out.... I have a zen on mine right now, everything else is stock for now, and still waiting for warmer weather to plug chop....

On the few days it gets up into the 40's i upjetted 4 jets and was four stroking and kept backing down until i was only up-jetted by 1. Do you remember how much you up-jetted when you only had the zen on there?

Also let me know how the mods go because they are def in my future when i get the extra $$..