scottydog1
Pro
Yes is is on a dolly on the Track, but so isn't my fiance's 07 Phazer and it takes as much pressure to push it down as up. This FX Nitro, I can push it down with (2) fingers? Hers it takes pressure (two hands). I will be bringing it in Thursday or Friday to have it picked and I will have them look @ this. I will update you what was wrong. My 05 Warrior is still on consignment @ the dealer since I bought this sled Last Thursday. There was nothing wrong with this sled I just wanted a sled that handled the bumps like her Fx Phazer, but the power of my Warrior. I hope I didn't make a mistake.
NB-NYTRO
TY 4 Stroke Junkie
depending on where the dolly wheel is- it will do that because all the weight is being forced down onto your rear shock and not your entire suspension. Put the sled on the garage floor and then sit on it.. You shouldn't have any problem then.
scottydog1
Pro
NB Nitro and you are exactly right. I never noticed this with my 05 Warrior or her Phazer, but when I tok out the rear dolly it still did it then I removed the front dollies and it was like it was supposed to be I guess I can give myself the 
. Now I feel better 
. Now I feel better 
clicker_clit
Pro
I have mine on dolly's and it sags the same as my 06 nytro did and my old rev when I sit on it. Go ride it around in the grass to test the suspension. Its all in your head. I have had the same thoughts in the past.
skyboz, those part numbers are correct and yes they will fit.
The stoppers will bolt up on most torsion suspensions from '05 to '08, They won't fit on Phazer Venture Lite or RS Venture.
But before you install on an FX Nytro, I would strongly suggest a ride first. I've ridden one and she is is pretttty stiff right out of the box. Plus you can go stiffer with the rear compression damping.
The stoppers do work though. Only drawback is a little rear kick over bigger bumps.
The stoppers will bolt up on most torsion suspensions from '05 to '08, They won't fit on Phazer Venture Lite or RS Venture.
But before you install on an FX Nytro, I would strongly suggest a ride first. I've ridden one and she is is pretttty stiff right out of the box. Plus you can go stiffer with the rear compression damping.
The stoppers do work though. Only drawback is a little rear kick over bigger bumps.
skyboz
TY 4 Stroke Junkie
1049 said:
Thanks, 1049!! I will definitely ride it first to make sure everything is cool! On flat ground, I can get it to go down some with everything set around the middle. But I was curious about the stoppers in case I did need them - which I doubt I will!! Now I know what to get if it comes to that!!!
snownutz
Expert
NOT FOR SURE I THINK INSTEAD OF THE ROLLERS IT LOOKS LIKE THERE USING A LARGER BLOCK
skyboz
TY 4 Stroke Junkie
snownutz said:
Your RTX came with anti bottoming rollers??????? Got a pic????
NB-NYTRO
TY 4 Stroke Junkie
Someone to should mention this to Chris in the Yamahablog. I'm sure he would be able to get some info for us. I must check and see if I have them. I don't think I do.
T
T
lucky_7
TY 4 Stroke Guru
I know mine doesn't have them! It sounds like a good concept, almost like an additional progressive rate spring on big hits.
skidooboy
TY 4 Stroke Junkie
all the "anti-bottoming" blocks are, is a roller placed on the rail behind the torsion spring retainer. when it gets to the roller, the spring stiffens up.
as far as anti-bottoming, it will still bottom if you are large in size and the bump, jump is large enough. in my opinion it is just a band aid for those needing stiffer springs due to weight and riding style.
at that point you will need to revalve and re-spring your shocks. the engineers can only send out a generic shock/spring package based on the majority of riders. if you are bigger than their specs, you will need to upgrade. unfortunately, sad but true.
for those wanting the blocks they can be had at your dealer for about 72.00 retail (alot cheaper than a spring and revalve upgrade). the most expensive thing in the part list is, the rollers. they are about 21.00 each. the only critical part besides the roller that you cant buy over the counter at your local hardware will be a collar for the roller. everything else is nuts, bolts and washers.
for another avenue of help, there is a guy on dootalk named bc3 he makes torsion spring spacers that slide over the upper cross shaft that the springs ride on. their premise is to keep the spring from rocking when loaded by coiling over the larger delrin spacer taking up the gap between the spring and the shaft.
i have them on my 02 zx chassis 440 and they took the place of 2 spring adjustment clicks on the spring adjuster. we also had them on the wife's rev renegade and they did the same thing there. we had to run hers in the 3rd or 4th position to get her sled not to bottom with her light weight body on it. with bc3's spacers, we ran them on 1-2 depending on conditions.
grape ape sent him dimensions for his mountain apex last year and so far he hasnt had the call to make any for the yamaha guys. i talked to him a few weeks ago wondering about the nytros, and bc3 said he still needs full closed specs on the springs to be able to machine the spacers for that particular yamaha (needs fully closed to prevent spring bind on the delrin). if guys live close to him, maybe they could take sleds over to him and help him develope this for us too. they cost the guys on dootalk about 50.00 per set. and they do work. ski
as far as anti-bottoming, it will still bottom if you are large in size and the bump, jump is large enough. in my opinion it is just a band aid for those needing stiffer springs due to weight and riding style.
at that point you will need to revalve and re-spring your shocks. the engineers can only send out a generic shock/spring package based on the majority of riders. if you are bigger than their specs, you will need to upgrade. unfortunately, sad but true.
for those wanting the blocks they can be had at your dealer for about 72.00 retail (alot cheaper than a spring and revalve upgrade). the most expensive thing in the part list is, the rollers. they are about 21.00 each. the only critical part besides the roller that you cant buy over the counter at your local hardware will be a collar for the roller. everything else is nuts, bolts and washers.
for another avenue of help, there is a guy on dootalk named bc3 he makes torsion spring spacers that slide over the upper cross shaft that the springs ride on. their premise is to keep the spring from rocking when loaded by coiling over the larger delrin spacer taking up the gap between the spring and the shaft.
i have them on my 02 zx chassis 440 and they took the place of 2 spring adjustment clicks on the spring adjuster. we also had them on the wife's rev renegade and they did the same thing there. we had to run hers in the 3rd or 4th position to get her sled not to bottom with her light weight body on it. with bc3's spacers, we ran them on 1-2 depending on conditions.
grape ape sent him dimensions for his mountain apex last year and so far he hasnt had the call to make any for the yamaha guys. i talked to him a few weeks ago wondering about the nytros, and bc3 said he still needs full closed specs on the springs to be able to machine the spacers for that particular yamaha (needs fully closed to prevent spring bind on the delrin). if guys live close to him, maybe they could take sleds over to him and help him develope this for us too. they cost the guys on dootalk about 50.00 per set. and they do work. ski
gormleyflyer2002
TY 4 Stroke Junkie
seems the gap is much smaller than what was on my REV ..... the spacer would help but it would be a pretty thin spacer.
ahicks
TY 4 Stroke Master
The benefit from running the bumpers is not having to deal with a stiff setup through the complete suspension travel. The only part that's affected is the travel beyond the point where the spring has made contact with the roller. The downside is the fact that there can be some kick back in some conditions - due to the lack of enough rebound damping in the factory shock valving.
Ross at Hygearsuspension.com has what he calls a "shim" available. It works within the torsion spring as described above, looks like a nylon bushing with an ID the size of the cross shaft, and an OD the size of the inside of the torsion springs. He sells them to increase available torsion spring preload. FWIW
Ross at Hygearsuspension.com has what he calls a "shim" available. It works within the torsion spring as described above, looks like a nylon bushing with an ID the size of the cross shaft, and an OD the size of the inside of the torsion springs. He sells them to increase available torsion spring preload. FWIW
