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Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

Rear ARB for Puma 90 25 or 30mm
I am thinking of upgrading the rear ARB on my 90, I notice Eibach do a 25mm and 30mm , I have trawled the web but cant find any info that outlines the pro’s cons to help choose between them, they are the same price, can anyone help?
Post #870335 29th Nov 2020 10:15pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881

England 2001 Defender 90 Td5 SW Epsom Green
The thicker the bar the less roll you’ll have and better road handling but at the cost of less bump compliance and flex as it effectively stops the axle twisting so much from the chassis. If you hit a bump on one wheel it will be harder for that axle to move and for the shock to be absorbed because the anti roll bar will be trying to hold it still.

I personally find the standard anti roll bar on my 90 the best balance between comfort /on road/ off road ability. I reduced the roll and wallowyness with bilstein b6 shocks. Which again will improve road handling but comes at the cost of bump compliance. I may stand corrected but I don’t think the firmer shocks have as much of a detrimental effect on off road flex as a stiff anti roll bar does. There’s no one size fits all with suspension set ups you just have to decide what you mainly use the car for and create the setup which fits. A lot of it is trial and error.
Post #870357 29th Nov 2020 11:43pm
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

That’s interesting, thank you, I wasnt aware of the impact on bump compliance so may even leave as is, definitely glad I asked Thumbs Up
Post #870362 30th Nov 2020 12:02am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7843

2011 Defender 110 Puma 2.4 USW Stornoway Grey
LandymanStefan wrote:
I don’t think the firmer shocks have as much of a detrimental effect on off road flex as a stiff anti roll bar does.


thats also my understanding.

i run standard dia ARBs front and rear (the front makes the biggest difference) and fitted medium duty OME shocks, rides and handles well on and off the tarmac (for what it is) Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #870408 30th Nov 2020 10:11am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881

England 2001 Defender 90 Td5 SW Epsom Green
I think generally new shocks are the first things people go for in terms of improving ride and handling. There’s been a recent thread on here comparing fox to bilstein. Then after the shocks if your ride is too firm fit softer springs... if you still have too much roll for your liking fit a stronger anti roll bar or firmer springs. Then after you’ve spend £££’s realise that it’s still a defender Rolling with laughter
Post #870412 30th Nov 2020 10:23am
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

No comment , springs arrived today Embarassed Rolling with laughter
Post #870531 30th Nov 2020 5:26pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881

England 2001 Defender 90 Td5 SW Epsom Green
Haha what did you go for?
Post #870537 30th Nov 2020 5:45pm
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

Alive Comfort Std Height , but keeping std shocks......for now!
Post #870609 30th Nov 2020 9:18pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881

England 2001 Defender 90 Td5 SW Epsom Green
Only heard good things about them Thumbs Up

I would hold off the arb until you’ve got the springs settled in and see what you want to change.

An interesting recent thread about spring/damper combos is this
https://www.defender2.net/forum/post870222.html#870222
Post #870612 30th Nov 2020 9:32pm
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

Will do, and thanks for the info , much appreciated Bow down
Post #870614 30th Nov 2020 9:38pm
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Oldowner



Member Since: 26 Dec 2018
Location: South west
Posts: 611

United Kingdom 2007 Defender 90 Puma 2.4 HT Aintree Green
I fitted the 25mm one to my 90 12. I the ago, it is excellent.

You cannot fit a 30mm one to the back of a 90 due to the 90 ARB clamp arrangement. There are conversions to allow the use of a 110 rear clamp setup on the 90 but they look a right bodge to me.
Post #870623 30th Nov 2020 9:52pm
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

Thanks Oldowner , useful to know
Post #870655 30th Nov 2020 11:22pm
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Wild Card 90



Member Since: 03 Dec 2014
Location: Gerlingen
Posts: 1060

England 2012 Defender 90 Puma 2.2 SW Indus Silver
I´m still loving the 25 mm ARB´s I fitted to my relatively lightly equipped 90 SW a few months back. However I´d come from not having any at all, and the difference was night and day.

https://www.defender2.net/forum/topic75137.html

The Extreme 4x4 set uses poly bushings which are a little denser than the standard.
I was worried about the suspension becoming too stiff (as I already have Heavy Track Raid shocks) but nothing of the sort. 1998 Tdi 90 SW,
2008 Td4 90 SW,
2012 2.2 90 SW,
2" raised Trailmaster/Terrafirma
Heavy Track Raids, 255 MT´s,
Recaro CS´s, anorak, wellingtons
Post #870681 1st Dec 2020 8:52am
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cold



Member Since: 15 Dec 2018
Location: Yorkshire
Posts: 118

I am going to see how I get on with new springs and then revisit the ARB question so good input Wild Card, thank you
Post #870701 1st Dec 2020 10:20am
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