DAYCO ULTIMAX BELTS ???

[MR.HAPPY]

Anyone using Ultimax belts on your RX-1?

How is your results?

With HH's?


BR

 

[NOS-PRO]

Hey Brx-1 - I tried a belt on the asphalt, in the beginning of the season. It did work well when new, but went down fast, and so I went back to a stock yami belt. The belt actually felt like a wire brush after 15 or 20 runs down the track, where I can run a stock belt much longer. Sorry, wish I had better news for you.

 

[RobX-1]

I'll have to agree with everyone as well. I used to run the Dayco UltraMax belt but as NOS stated, they just seemed to wear faster; got better longevity with the stock Yamis. They also seemed to sit lower in the secondary whereas I would have no problems getting the proper belt adjustment with the Yamaha belt.

 

[POWERHAULIC]

Ultimax seemed to wear quickly on this sled for me also, but I have had good luck with the Gates Extreme on my RX1.

 

[yamamax]

Dayco has come out with a "new" belt. I believe the part # is HPX5009

 

[RXONE]

Dayco?

I would'nt run a Dayco Ultramax if I were you!..I ran one on my RX-1 and man it came apart after about 300 miles sounded like a shotgun going off.Pieces of belt all over..And bent my coolant hose cover under the clutches..I won't run another one no way!

 

[MR.HAPPY]

Thanks, I'll stick with a Yamaha belt!!!!

BR

 

[JD]

Belt Use

I found the Yamaha belt to very reliable....but was amazed at the different widths and lengths (same number of course)…This year I will try one of the Gates Extreme…either the 38X4420 or Mountain belt (38XM4420)….anybody try either yet??? JD

 

[Dano]

JD, I tried the Gates extreme in my Mach Z and srx. I found that you need to reclutch because being harder belt to reduce slipping. I also found them to be a tad longer than the OEMs. Could be the batches I had, but I also heard from other users.
I tried the ultimax and had no luck as well

Dan

 

[POWERHAULIC]

I ran the 38x4420 last year with good results.