Wales
by Joske Vermeule, September 1
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Forums39
Topics49,868
Posts837,638
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Most Online1,063
Jun 14th, 2026
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Joined: Aug 2015
Posts: 1,616 Likes: 143
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,616 Likes: 143 |
Yes that's what it was!
I also got two sets of ex SLR wheels and tyres as a wedding present thanks to the FIA....
Arwyn
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Joined: Aug 2015
Posts: 1,616 Likes: 143
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,616 Likes: 143 |
Yes that's what it was!
I also got two sets of ex SLR wheels and tyres as a wedding present thanks to the FIA....
Arwyn
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Joined: Feb 2010
Posts: 1,415
Has a lot to Say!
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Has a lot to Say!
Joined: Feb 2010
Posts: 1,415 |
Keith and Billy are just too dang fast for the big boys, so someone protested them
Problem is, there’s only 3
They’re all different
Chris Lawrence isn’t around to say what was correct in period
So how do you homologate?
Simon @ SiFab.co.uk
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
On my 4/4 Anniversary with 185/70s there was no rub.
On my Plus4 with the same tyre size there is rub. When I fit the Mulfab steering bearings I'll take a view.
It might be possible to squeeze a section of the tube in my vice. It only needs 2 or 3mm to provide clearance over about four inches length. (Sorry to mix metric/ imperial).
I have some rollers in stock but I'd rather not fit them.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Oct 2013
Posts: 6,723 Likes: 2
Talk Morgan Sage
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Talk Morgan Sage
Joined: Oct 2013
Posts: 6,723 Likes: 2 |
I have them fitted to my 4/4 .The car is fitted with two litre 185 bhp zetec.They have definitely made a difference.
Had no problem with rubbing.
But I do drive spirited! Leaving aside the tyre rubbing on full lock issue for a moment, what exactly are the symptoms that they supposedly alleviate..? I'm not a last minute or hard braker, so I've never felt the difference between the 4/4 (without) and the Roadster (with) although subjectively, the Roadster feels more planted under braking. If you haven't got the bracing effect, I'd guess you'd experience a wander through the steering at peak braking which would lead on to all sorts of driver reactions. Would this be the effect..?
Steve
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Joined: Nov 2011
Posts: 382 Likes: 3
Learner Plates Off!
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Learner Plates Off!
Joined: Nov 2011
Posts: 382 Likes: 3 |
For me (a none expert on such systems) they give me a piece of mind in an emergency braking situation and are very inexpensive, my wheels do touch slightly on a full lock (4/4); but how often do you engage full lock.
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
I need full lock to get in and out of my garage!
I think the reaction bars just help to suppress judder under braking. I doubt it makes much difference on the road.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Feb 2016
Posts: 8,683 Likes: 413
Needs to Get Out More!
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OP
Needs to Get Out More!
Joined: Feb 2016
Posts: 8,683 Likes: 413 |
So they work  So why all the not needed in normal road use nonsense  There are many things we can do without on cars if driven gently, but if something is available at moderate cost that works even if just on paper, then why not grab it, assuming in this case, its designed and fitted properly to avoid the steering lock issues.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Apr 2008
Posts: 12,260 Likes: 319
Scruffy Oik Member of the Inner Circle
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Scruffy Oik Member of the Inner Circle
Joined: Apr 2008
Posts: 12,260 Likes: 319 |
Leaving aside the tyre rubbing on full lock issue for a moment, what exactly are the symptoms that they supposedly alleviate..?
I'm not a last minute or hard braker, so I've never felt the difference between the 4/4 (without) and the Roadster (with) although subjectively, the Roadster feels more planted under braking.
If you haven't got the bracing effect, I'd guess you'd experience a wander through the steering at peak braking which would lead on to all sorts of driver reactions.
Would this be the effect..?
That has been my experience with my 4/4. I owned it for a while before I fitted brake reaction bars, and your description of feeling more 'planted' under hard braking fits my experience exactly. Do they make a massive difference under normal driving? No. Are they a must have? No. Is it a problem if they rub at full lock? No. But they are cheap and easy to fit, and could help stabilise the steering in a situation where one is braking very hard.
Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
Although the upper mounting point is fixed, the wider front frame moves the chassis mounting point slightly forward.
Add to this the fact that 4/4, Plus4 and Roadster wire wheels have slightly different offset.
The 4/4 has least offset and so runs closer to the upper spring mounting. Given that the end of the reaction bar is well back on the chassis, with 185/70s on a 4/4 there may be clearance issues on the upper spring mount and rubbing on the sidewall.
Adjustment of the chassis mount point is limited!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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