What speed is to be expected

I installed a Jbs sheave with 16 oz weights and purple spring with a dynotek cdi max speed was 42 mph changed spring to a gold spring and only getting 45 mph rhino is stock engine running 27 inch sti rocktane tires I'm I asking to much with a stock engine could my belt be bad I don't wanna lose my bottom end to gain speed

how many miles on belt

About 300 I talked to you on phone the several times still can not hit 60 I got passed by a wolverine last weekend on the road it seemed to have more bottom end and engine braking with the purple spring

700 right

Yes 2012 700

i will be gone till monday ridn...call me then and im gonna make a list on yours till we get it right..

Ok sounds good have a happy easter

you too!!

Something can't be right. One of the things I noticed with mine is that the engine braking is every bit as good, if not a little better than stock.
Watch the video and make sure you got your weights in right.
James will fix you up, don't get discouraged.

The weights are installed correctly and not flipped got to be something wrong my tires are real heavy 8 ply not sure what wrong James will fix it I'm sure of it

Ok update I installed 14oz weights and purple spring can only get 43 mph what are the symptoms of you belt being bad ? James any ideas ?

Those are some real heavy tires, but I don't want to believe they would kill you that bad. I would think that it should hit the upper 40s pretty good.

You hitting the rev limiter at 43-45?

send me pics

I know with 18g and gold spring with 28's radials I was at 48 without CDI.

Switched to 16g and dropped to 44mph. I'm still learning but to me it seems like the tires hold you back alot.

I have 29.5 terminators with cam, msd and 16g and can only get 43 mph on a long stretch. Toss some smaller tires on it and see what you get.

I have to agree on the tire size, I can hit 50 mph on 25in tires with the Jbs sheave and 18 gram Od sliders, But when I put on my 27in MST Outlaws it drops to 44-45 mph. There is just too much weight in the bigger tires. my 2 cents.

How are you measuring your speed? A taller tire will cause the speedo to read slower.

I know in real world situations it will be off with the increase in tire size. Did anyone GPS to compaire? Would be a good write up

Thanks for pointing that out, sometimes my brain just fart's when im thinking!

i have a 07 660 with pro tec dual exhaust k&n intake an cdi an i can hit 47mph on the speedo with two people n it on hottop an im running 29.5s swamplites an stock clutching right now

Before my JBS I had CDI, gold spring and yamaha 14gram weights and could run 51mph with 26" big horns on 14" wheels and lots of other accessories like a front rack that weights 70lbs and a winch. Now after the JBS sheave and 18gram OD weights and gold spring I have been up to 57mph. All GPS and my dash actually reads the same as GPS most of the time with 1mph +- on occasion.

I had to come home part way along a hyway and reached 60MPH,thats the fastest I have ever gone on my Rhino,I might have been able to go faster but the RPM's sounded high so I slowed to 54.