Best 50cc Clutching for TT

[#404's Dad]

So whats the best set-up in your opinion for TT racing and why?

Stock:

Stock ( Modified by Hetrick )

Stock ( Modified by Maximum )

KOSO

Mallosi

Polini

Dr. Pulley

Or Other

Just curious to know what most like and more importantly what most do NOT like.

Thanks

[jetski_dawg]

the best set-up is the one that keeps it in the power band.. talk to marc at hotquads..he has a great set-up for the 50

[tireman43]

I can't say for TT but we use the Malossi for MX and it seems to work great. It is fairly easy to set up and performs great when it is set right. I don't like to be too negative toward other products in the open forum, but can say I have used one mentioned and the Malossi is much better! It sounds like many are trying out the Dr. Pulley and really like it also. I just bought the Malossi at the end of the season so I will use it until it starts to wear out and may try the Dr. Pulley then.

Kevin

[Tyler's Dad 95y]

Save your money!! Dr. Pully will not work on a 50.
It will make it grab to fast for that small of a motor.
Your best bet is the Mallosi or a Koso.

[#404's Dad]

Originally posted by jetski_dawg
the best set-up is the one that keeps it in the power band.. talk to marc at hotquads..he has a great set-up for the 50
Not at all looking for info on how to set one up and make it work right, I can do that with no real issues, I am wanting people's opinions on what brand/style is the best in their opinions and why.

[#404's Dad]

Originally posted by tireman43
I can't say for TT but we use the Malossi for MX and it seems to work great. It is fairly easy to set up and performs great when it is set right. I don't like to be too negative toward other products in the open forum, but can say I have used one mentioned and the Malossi is much better! It sounds like many are trying out the Dr. Pulley and really like it also. I just bought the Malossi at the end of the season so I will use it until it starts to wear out and may try the Dr. Pulley then.

Kevin

I used Koso in both of my boy's bike last season and it all worked great, I have purchased some Mallosi stuff for this season for one of the bikes but still have at least one more of his bikes to get clutching for and was considering the Hetrick National deal IF he can explain what he does to some point, I am not paying $275 for him to mill my faces to a different angel unless some one can really make me believe its worth it.

[#404's Dad]

[QUOTE]Originally posted by Tyler's Dad 95y
Save your money!! Dr. Pully will not work on a 50.
It will make it grab to fast for that small of a motor.
Your best bet is the Mallosi or a Koso. [/QUOTE

I have read that a few times, can they not be backed off some for the 50's or are they just that aggressive even at their lightest setting?

[Logan #34's Dad]

I run the Malossi Overrange stuff. Works well. For TT it may be better than for MX. Larger rear pulley is suppose to equal greater top speed. The Overrange stuff is big in the scooter world. Also, for TT - what ratio tranny you got? I believe the new ratio is like 7:1 the ole' 90cc ratio is 9:1. The new ratio should be a TT'er dream IMHO.

[#404's Dad]

Originally posted by Logan #34's Dad
I run the Malossi Overrange stuff. Works well. For TT it may be better than for MX. Larger rear pulley is suppose to equal greater top speed. The Overrange stuff is big in the scooter world. Also, for TT - what ratio tranny you got? I believe the new ratio is like 7:1 the ole' 90cc ratio is 9:1. The new ratio should be a TT'er dream IMHO.

I have the rear Over range and a Delta clutch, are you running the front over range too?

I have stock trans gears in 2 and will have 17/41 in another for testing.

How are you coming up with the 7:1 and 9:1 ratios? Is there an easy math formula?

[Logan #34's Dad]

I am running the variator (front) as well. Wait till you see the size of these rollers! I have two different belts as well. I will edit this with the numbers when I get home to check 'em. The front variator does not seem to be any larger diameter than any other though. Malossi markets the variator as being better due to r&d with the ramp angles. I will get the Dr. Pulley variator and sliders when my wallet allows to do tests. I'd like someone with a dyno (hint) to compare apples to apples. People say the sliders set up is quicker but who knows.
Ratios - simple. mark a tooth on the front sprocket, mark a spot on the clutch bell. Turn the bell counting each revolution until the mark on the sprocket comes back to the starting point. If the bell turns 9 times and the sprocket once = 9:1 :D
My math stinks! LOL - that'll teach me to cheat in High School!

[#404's Dad]

Originally posted by Logan #34's Dad
I am running the variator (front) as well. Wait till you see the size of these rollers! I have two different belts as well. I will edit this with the numbers when I get home to check 'em. The front variator does not seem to be any larger diameter than any other though. Malossi markets the variator as being better due to r&d with the ramp angles. I will get the Dr. Pulley variator and sliders when my wallet allows to do tests. I'd like someone with a dyno (hint) to compare apples to apples. People say the sliders set up is quicker but who knows.
Ratios - simple. mark a tooth on the front sprocket, mark a spot on the clutch bell. Turn the bell counting each revolution until the mark on the sprocket comes back to the starting point. If the bell turns 9 times and the sprocket once = 9:1 :D
My math stinks! LOL - that'll teach me to cheat in High School!

Well chit, thats as easy as checking the gear ratios in the ole Posi rear ends for Camaros and such, sweet, thanks :)

EDIT: As far as Dynoing parts I am game and will do so as time permits, I right now have a DRR 70 that will be a dedicated Dyno bike and I also have the two 50's on hand too so testing is nothing really but time, oh we always have at least two Apex 90's on hand as well.

[tireman43]

8trx450r you have a PM.

[#404's Dad]

Originally posted by tireman43
8trx450r you have a PM.

10-4 Roger That :)

[saintmick]

we are running the full malossi overange on my sons pro shark 100 the same as your'e apex's.
we use the malossi kit to elimimnate the problem we had with breaking belts and shredding them the quad is putting out 15.7 hp we race for one and a half ours in all conditions it's never let us down the full overrange kit will gear the quad down so you will have to adjust sprocket's to suit we run 20'28 and it flies

[Logan #34's Dad]

Hello Saint, I'm just curious on your comment about the overrange kit gearing down down the quad. From everything I know it is suppose to work the opposite of gearing down. My thinking, the middle shift points are the same as stock BUT as the belt starts out higher on the rear (larger than stock) pulley you'd be in a quicker 1st gear than stock for a second (until the belt gets pulled down. The final ratio (topped out) will not be that much more different than stocker either unless the variator is larger in diameter (which I don't believe it is) and the belt is long enough.
Now, If your talking about the ramp angles and extra large rollers being the cause for the quad being geared down then I'd like to hear your thinking there as well.
I'm still not 100% sold on the overrange so I'm hopeing you can get me up to 100%. LOL
I run a 20/28 for mx also.

[#404's Dad]

What belt should I run with the full Malossi over range front and rear ??

[saintmick]

with running the malossi overange you do get a stronger bottom end but you do loose top end we have seen this a few times on different quads on the rolling road we lost 12 mph top end running the overrange before we fitted overange we put my sons quad on the rolling road with an 18 28 gearing using an [frc variator malossi copy] koso clutch and bell malossi belt 6112742 it was pulling 60mph im not saying it would do this speed on a track we then removed all of the above equipment and replaced it with the right malossi overange kit belt number 6111108 we then ran it back up on the rolling road acceleration had improved also tourqe and the transfer of the power made it alot smoother on and of the throttle we did loose top speed we replaced front sprocket with 20t everything got better and we got our top speed back and elimenated the problem we had with not just shredding belts but snapping them we have raced three times each race one and a half hours long on the same belt in some seriously bad conditions with out a problem hope this helps
mike

[Logan #34's Dad]

Hello Mike,
Hmmm. I'm trying to figure out how it would loose top speed. Once the belt is all the way down in the rear pulley it should be no different than a stock pulley setup. Right? I'm not trying to insult you here but was the roller weights heavy enough to get the pulleys into final drive? Did you happen to mark the variator with a marker to make sure you got full belt travel when doing the overrange test? Again, I'm just trying to figure this all out. I was given a different belt which seems to be the same length as the 108 belt but a tad bit wider. I'll get the number when I get home. Thanks for your input.
Rocky

[saintmick]

hi mate
we are using all of the variator when we fitted the malossi overange kit we were suprised to see this we got in touch with malossi tech support and they advised us to gear bike up they also said we would have a much greater chance of reaching a higher top speed with the overrange kit with a rider aboard pulling through mud etc we run malossi rollers 7gram we did try running the shorter belt 6112742 on the overange kit while on the rolling road and produced the same results as the longer belt i would like to try the belt you mentioned to see what the results would be i have tried a few different se up's but i am very happy with how the quad work's we won the 2008 winter british championship and last week took first place in the worst conditions ive seen winning by 3 laps
thanks mike

[Logan #34's Dad]

Well I made it home. The belt number is 61 8779. If you try it and the results are something different please let me know asap. Thank you.

[#404's Dad]

None of the above mentioned belts claim to be for the Over Range set up from what I am gathering on Malossi's site

6112742, 6111108 and 61 8779 all have this information attached to them.

KEVLAR BELT

This generation of belts was created especially for racing use. For this reason it develops an exceptional greep and it allows to transmit the whole engine power.
It grants these performances by means of special mixture and inserted stiffener fibres in Kevlar, fibreglass, nylon, etc.

6113386 is a Jog belt for "Over Range" ONLY, not sure if it would work on the quads but aparently there is a difference with it being labled for Over Range Only.

X Kevlar Belt and X Special Belt

The standards are continually being raised and the challenge for perfection knows no limit.

Now besides the Special Belt and the Kevlar Belt, champions of durability and performance, Malossi introduces two new players to the field... the X Kevlar Belt and the X Special Belt.

Malossi's technical department wishes to thank their admirers who provide a fundamental stimulus for research and development.

ONLY for OVER RANGE .


I have no clue as to what belt Malossi is even sending me, the guy said he knew which one and would send it, now I am even more concerned!!