How fast can your 80cc really go?

Hey,
This is not a pissin' match.
Chill out. It's a place to share info and
give input. This thread may lay claim to
some Bull Puckey, but that doesn't mean go
attack someone's every word and chastise them.

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My Production Bobber Build Up
'BrettMavriK
"Everything Is Possible...If You Can See Beyond The Invisible"

Even Funnier When They Just Do First letter Of Each Word. Some People Must Think It's Neat. (Where Is He Anyways? )

Your 49cc HT "WILL hit 60 MPH"?????? Prove it... (seroiusly)

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For bicycle engine kits & bike service in Los Angeles, visit us at- www.VeniceMotorBikes.com

Your right its not a pissing match, different forum. Seriously you could answer a few points/ question raised like the racing fuel? gear ratio's dont matter? 48.5, 55, or 60mph which is it? honestly it reads like the chineese instructions supplied with the kit.

Some people have posted some funky speeds in this thread i just think its about time people show some factual evidence of it to back it up or expect a responce in disput.
I think the bullies are thoes who pull 10-20mph outta thin air.

I can haz 32mph if I whisper sweet nothings to me bike... "yea baby, how u likin' that Amsoil?" "Come on honey please? I got a new tuned pipe inna mail fer u!" "Aw darlin' I swear I'll wash ya when we get home... mebbe tomorrow..."

Perhaps I just need to change that damn sprocket lol

I could provide you with a lil movie clip of my GPS as I'm riding ona rare (around here) flat section, but not only is this a believable speed - but I'm askeered of dying tbh

or just dropping my camera

Brett,,,you have a purpose built frame
ie...you designed it to do that
most are not capable of the vibes and/or stresses related to that kind of prolonged speed
trying to do 50mph on a 100-200$ bicycle is foolhardy at best and could be life-threatening at worst

I did not mean to sound condescending to your skills or others who have proven they have done their homework 1st

__________________
Bill
EZ Motorbike Dealer - Fountain Hills, AZ
www.ezmotorbike.com
azgrampa@gmail.com

Not at all, AZBill,
and I agree with you.
I would never attempt to run over 30mph
on any store bought short wheelbase bike with a high center of gravity,
and without good proper braking. Now there are some well made bikes like
Pipelyne with great brakes and suspension that I would have no problem redlining.
I'm even pushing it with my bike,
as the Achille's Heel is the wheel bearings.
I have mine liberally repacked with grease and carefully tensioned in their races.
Not Tight, but No Slop is the magic setting.
Someday, I will have hubs made with tapered roller bearings and wheels
with 11 ga. spokes. I cruise at 40 mph in 5th gear and have just stopped to
get off and feel the hubs for heat or resistance in the roll of the wheels.
So far they have been cool as a cucumber.

__________________
My Production Bobber Build Up
'BrettMavriK
"Everything Is Possible...If You Can See Beyond The Invisible"

Sweet ride BrettMavrik. I see you have a similar jackshaft set-up as I do with my Stiletto. You might want to consider a Mega-range gear cassette. 1st gear-34t, 2nd gear 24t, 7th-14t. I had to build a chain guide to feed the chain onto the jackshaft drive gear straighter to keep the chain from jumping off when shifting. Works perfect though. Have you had any similar problems?
Anybody trying to go faster than 40 on a Mountain bike is trying to commit suicide in my opinion. A low center of gravity like Bretts' or a Stiletto is a must for those kind of speeds. Also good brgs in the hubs like in the 15mm axles on my bike. Not standard 13mm bike axles.

I hit 62kmh/38.5mph today on a slight decline. My best speed so far. I think I could have kept going but I freaked out a bit lol. I have 38x700c tires running a 9 speed deore rear cassette. This is with a skyhawk gt5 66cc, rocksolidengines billet head, SBP shift kit with the 10tooth, SBP expansion chamber and a boost bottle.

^ finally someone is being honest about their speed. Refreshing