Going from a 650sx to a WDK ROK what to expect?

So I just got this ski, stock 62T, head/pipe, Full Spectrum 46's, Solas 148mm pump, Solas Hooker impeller, & that's most of what I can think of that describes it. Wanted to know what kind of riding this hull was good for. I Just put it in the water, ski has way more power than I'm used to but all I can do is put put around, if I go past quarter throttle it just noses straight up. Thinking something could be set up wrong maybe? It does look like it may have a 5 degree nozzle on it, oh and it has a trim trigger but that just angles up the nozzle more. I was told this ski used to have an 1100cc motor & was originally built for a WDK employee so IDK what I have going on or if its just me lol.
 

Big Kahuna

Administrator
Location
Tuscaloosa, AL
See if you can adjust the trim back so it does not have any static pull on it. If you have a 5 degree nozzle, you may want to swap it for a 0 degree. Many Aftermarket hulls ride nose up to help with flat water back flips. Try riding with one foot forward and shift your weight forward more. Also how short is the ride plate.
 
See if you can adjust the trim back so it does not have any static pull on it. If you have a 5 degree nozzle, you may want to swap it for a 0 degree. Many Aftermarket hulls ride nose up to help with flat water back flips. Try riding with one foot forward and shift your weight forward more. Also how short is the ride plate.
Tried shifting my weight because that's what I do on my old 650 to stop it from proposing, It kinda helped I could get a little more speed but their is so much left on the table I just cant hook it up. If I get aggressive with the throttle jumps out of the water and stands straight up. I'm about to be home and I will measure the ride plate, really appreciate the help on this sir.
 
Location
Ohio
It is going to want to be ridden very aggressively! Post a side shot so we can see pole length and ride plate length. If it has a front foot hold you are going to want to slam into it often while throwing the nose
down hard.
 
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Location
dfw
The ROK is short and has a lot of lateral grip. Most A/M hulls are short, and slippery like your 650. Hulls that were strictly setup for back flips will typically be uncomfortable to ride planed out at higher speeds. You can make a bit of a hybrid by changing where you stand and handle pole length. Depending on your size, I would set the trim a little negative at first so it will plane normally. Making it longer will turn it into a light weight SXR. You may want your 650sx back for blasting around the lake.
 
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The ROK is short and has a lot of lateral grip. Most A/M hulls are short, and slippery like your 650. Hulls that were strictly setup for back flips will typically be uncomfortable to ride planed out at higher speeds. You can make a bit of a hybrid by changing where you stand and handle pole length. Depending on your size, I would set the trim a little negative at first so it will plane normally. Making it longer will turn it into a light weight SXR. You may want your 650sx back for blasting around the lake.
Yeah was gonna sell the 650 but after riding the ROK I’m definitely gonna hang on to it for the river rides me and my buddy do. With the trim set how it was the ROK would never plane out. Hopefully the trim change will help and I can use it more practically, I feel like it has a lot of power but I can’t use it because it wants to jump out of the water or stand up.
 
Work with it, the Rok isn't that short of a hull. IMO it's pretty long still for a freestyle ski.

its hard to tell for sure, but that does look like a 65v 5 degree reduction nozzle. Try looking for a 62T nozzle setup if you can't get comfortable with it after some decent tray time.
 
Work with it, the Rok isn't that short of a hull. IMO it's pretty long still for a freestyle ski.

its hard to tell for sure, but that does look like a 65v 5 degree reduction nozzle. Try looking for a 62T nozzle setup if you can't get comfortable with it after some decent tray time.
Going to this ski from what I have been riding is definitely gonna take some getting used to for sure.
 
To reiterate what others have said, if you have a nozzle that is angled up (65v) you should really get a straight nozzle based on your description. It's a matter of personal taste but it sounds like you'd be happier with the straight nozzle.
Thank you for the advice.
 
I'm not super familiar with the ROK but it's more of an all around hull isn't it, not a super short freestyle hull? Should be a really sweet ride once you get used to it (I say that not having ever ridden one).

I can say don't be afraid to play with ergonomics and setup. You can make a huge difference in how a ski feels by changing pole length/ride plate length and shimming (don't underestimate how much of a difference shimming can make), nozzle angle, and handlebars.
 
I'm not super familiar with the ROK but it's more of an all around hull isn't it, not a super short freestyle hull? Should be a really sweet ride once you get used to it (I say that not having ever ridden one).

I can say don't be afraid to play with ergonomics and setup. You can make a huge difference in how a ski feels by changing pole length/ride plate length and shimming (don't underestimate how much of a difference shimming can make), nozzle angle, and handlebars.
Yes from my research the ROK was WDK's mor recreational hull. I can say this it's definitely gonna take me some time to get used to.
 
The roc is just a rec hull. It's not short, it's probably not light and with the power setup that's in it, it can probably do a flatwater barrel roll off your own setup wake. It won't flatwater flip , but will flip and roll off a large boat wake or in surf waves. I rode one one time with a 5mm stroker motor and did not like the way it rode. I did a half assed roll off a big boat wake when that flat nose didn't just plow thru the wave
 
The roc is just a rec hull. It's not short, it's probably not light and with the power setup that's in it, it can probably do a flatwater barrel roll off your own setup wake. It won't flatwater flip , but will flip and roll off a large boat wake or in surf waves. I rode one one time with a 5mm stroker motor and did not like the way it rode. I did a half assed roll off a big boat wake when that flat nose didn't just plow thru the wave
I didn't buy it to do back flips so I guess that's a good thing, it weighs 255#
 

CD155MX

Squirrel!!!
Location
Alta Loma, CA
I think you can expect a fun azz rec ski. I've always felt the carbon Rok's were very underrated for that purpose. Far more nimble than a SJ or SXR 800, but still rides enough like a normal ski to rip around on.
 
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I think you can expect a fun azz ski rec ski. I've always felt the carbon Rok's were very underrated for that purpose. Far more nimble than a SJ or SXR 800, but still rides enough like a normal ski to rip around on.
Thanks, that's what I was looking for, just something to have fun with.
 
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