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School me on bump stops

jeeppoor

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Joined
Nov 29, 2012
Messages
372
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

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Jan 27, 2013
Messages
2,118
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

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Joined
Oct 19, 2013
Messages
211
What's the drawbacks of 2.0 x 3", 6" of uptravel? Not looking at jumping but can never rule it out.
 

ridered3

Not Rigless
Joined
Jun 24, 2010
Messages
7,658
Location
Rockvale, TN
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
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

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Joined
Oct 6, 2011
Messages
787
Location
Jacksonville, Fl
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

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Joined
Dec 6, 2011
Messages
393
Location
Clarksville, TN
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

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Joined
Jun 7, 2012
Messages
520
Location
Lenoir City TN
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

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Joined
Oct 22, 2014
Messages
2,214
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
 

ridered3

Not Rigless
Joined
Jun 24, 2010
Messages
7,658
Location
Rockvale, TN
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

Well-Known Member
Joined
Aug 13, 2010
Messages
688
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

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Joined
Jan 27, 2013
Messages
2,118
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

Well-Known Member
Joined
Aug 13, 2010
Messages
688
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.
 

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ridered3

Not Rigless
Joined
Jun 24, 2010
Messages
7,658
Location
Rockvale, TN
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.
 

Markrobinson

Well-Known Member
Joined
Aug 13, 2010
Messages
688
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?
 

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