School me on bump stops

jeeppoor · Oct 28, 2022

Looking to try and pick up a set for the front of the juggy. Hopefully get a set on sale for black Friday.
how do I measure for the correct size? Mounting I see there are couple different mounting cans. clam style and pin. Which style is better and why?
They will be going on a juggy that rock crawls and does see a little road time.

Bebop · Oct 28, 2022

Get some 2.0x2

Don't need anything bigger unless you're pulling huge amounts of travel and like to go fast.

Pin top mount is the best because they are easy to install and remove. They're more expensive and generally not in stock.

That's what I use on my rig and I really like them.

baldduck74 · Oct 28, 2022

What's the drawbacks of 2.0 x 3", 6" of uptravel? Not looking at jumping but can never rule it out.

Markrobinson · Oct 30, 2022

baldduck74 said:
What's the drawbacks of 2.0 x 3", 6" of uptravel? Not looking at jumping but can never rule it out.

I'm guessing they end up being an additional stiff spring in most of your up travel

ridered3 · Oct 30, 2022

baldduck74 said:
What's the drawbacks of 2.0 x 3", 6" of uptravel? Not looking at jumping but can never rule it out.

Markrobinson said:
I'm guessing they end up being an additional stiff spring in most of your up travel

Don't know a whole lot about the "how to" of bump stops, but Marks description is pretty accurate of an additional exponentially stiffer spring.

Lil ugly · Oct 31, 2022

bumps are just there to slow the rigs travel down in a hurry at the very end of the travel to keep from damaging your coilovers, etc. You shouldnt be riding on them if possible. On a rig with only 5 inches of shaft showing, a 4 inch bump stop will only have 1 inch of clearance before you start getting into the bump stop under most riding conditions. Not a big deal for rigs that are launching and taking a big hit, but not ideal for a rig that is taking it slower. Should only have two inches of travel in the bump stop.

If you buy 4 inch travel you can usually install an internal spacer and limit them to 2.

Trailabite · Nov 1, 2022

Lil ugly said:
bumps are just there to slow the rigs travel down in a hurry at the very end of the travel to keep from damaging your coilovers, etc. You shouldnt be riding on them if possible. On a rig with only 5 inches of shaft showing, a 4 inch bump stop will only have 1 inch of clearance before you start getting into the bump stop under most riding conditions. Not a big deal for rigs that are launching and taking a big hit, but not ideal for a rig that is taking it slower. Should only have two inches of travel in the bump stop.

If you buy 4 inch travel you can usually install an internal spacer and limit them to 2.

Yep, I have this issue. Mine are being sent to Wizzo to be short stroked.

alscott · Nov 1, 2022

You can always drop the bump pressure as necessary to. Ghetto, I know, but works for me. 200 psi will beat the crap out of you on a lower uptravel rig. Its like hitting a wall.

Zjman · Nov 1, 2022

alscott said:
You can always drop the bump pressure as necessary to. Ghetto, I know, but works for me. 200 psi will beat the crap out of you on a lower uptravel rig. Its like hitting a wall.

Sounds like my rig. Need a kidney belt In The rocks but it works

Lil ugly · Nov 1, 2022

Trailabite said:
Yep, I have this issue. Mine are being sent to Wizzo to be short stroked.

I am going to have to do mine as well. I wanted to get all of my spring rates set so I know if I need to shorten one or two inches.

ridered3 · Nov 1, 2022

Our juggy came with 4-4" bump stops that had these massive bump stop pads that were built up 3-4" total.

So at ride height there was 1/2" of up travel before getting into the bumps. Needless to say it was very stable but rode like a 4-linked, air shocked log truck. For my riding style just took the bump stops out instead of shortening my them at around $100 per bump at that time.

Markrobinson · Nov 14, 2022

Bebop said:
Get some 2.0x2

Don't need anything bigger unless you're pulling huge amounts of travel and like to go fast.

Pin top mount is the best because they are easy to install and remove. They're more expensive and generally not in stock.

That's what I use on my rig and I really like them.

Maybe (probably) I'm a shitty fab guy, but I'm paranoid I'll warp some pin top cans when welding them. What's the draw back to a pinch style with a stop welded up top for a pin type? At least then if it distorts when welding it has a full length relief cut to allow the bump to come in and out

Bebop · Nov 14, 2022

Can't say I've have had the issue and I'm not a badass fab guy by any means.
I read you could use a hone to clean up the ID in case the bumpstop doesn't fit.

On the other hand, in my limited experience, taking the bumpstops out of a pinch style mount that has been clamped for a few years is a massive PITA, across the board.

Markrobinson · Nov 14, 2022

Bebop said:
Can't say I've have had the issue and I'm not a badass fab guy by any means.
I read you could use a hone to clean up the ID in case the bumpstop doesn't fit.

On the other hand, in my limited experience, taking the bumpstops out of a pinch style mount that has been clamped for a few years is a massive PITA, across the board.

I guess if I did warp it, I could cut a seam in it vertically and make it pinch style, or go with ballistic's can that blends both.

ridered3 · Nov 14, 2022

Markrobinson said:
Maybe (probably) I'm a shitty fab guy, but I'm paranoid I'll warp some pin top cans when welding them. What's the draw back to a pinch style with a stop welded up top for a pin type? At least then if it distorts when welding it has a full length relief cut to allow the bump to come in and out

Just come over and cut the pinch style can mounts off the juggy for reusing on your rig.

Bebop · Nov 14, 2022

ridered3 said:
Just come over and cut the pinch style can mounts off the juggy for reusing on your rig.

haha win for you, no doubt

ridered3 · Nov 14, 2022

Bebop said:
haha win for you, no doubt

100%. Help me help him.

Beerj · Nov 14, 2022

This is exactly what happened to me. Warped the hell out of them. Wore out 2 sets of stones with the hone and still didn't fit. Ended up making a slice.

Bebop · Nov 14, 2022

I guess I got lucky :-/

Markrobinson · Nov 15, 2022

Beerj said:
This is exactly what happened to me. Warped the hell out of them. Wore out 2 sets of stones with the hone and still didn't fit. Ended up making a slice.

Sucks that that happened to you, but I'm glad you posted. It was enough to push me to take a chance buying from ballistic. Surely they've improved since they ruined their name back in the pirate4x4 days right?