[GRIDHEAD]

SAQMASTER - Like you I thought the 20 Inch could only make matters worse but, IMO, they seem not to, but maybes it’s psychosomatic and I am just hoping I’ve not wasted the cash. The Monostars run 40 * 245 on the front and 35 * 275 in the rear, so the change in tyre wall is pretty pronounced, don’t get me wrong you still get the wallowmatic from the dampers over speed bumps and the like but less jiggle at low speed if that makes sense, I seemed to be able to set up a standing wave at 10mph on any poor surface which made my belly(s) oscillate in a very disturbing fashion…

To assess the impact of 20s I would try and find a demonstrator with Monostars, if there are any left, to have a go in as there not cheap

Dealer quoted

“Startech Monostar Wheels-

Wheels £336.17 + vat x4
Tyres front £220.00 + vat x2
Tyres rear £250.00 + vat x2
Locking wheel bolt set £24.68 + vat x1
Tyre pressure sensors £38.05 + vat x4
Tyre pressure sensor mounting kit £12.00 + vat x4
Wheel nut set £5.00 + vat x4

Total £2529.56 + vat =£2972.23

For May I am doing a special deal of 15% discount for the above set
Labour price to fit above £180.00 + vat.”

and according to the dealer 2 from my original post “the STR-D has a slightly different suspension to the stock car” but he could be talking BS ….. NB I am running a touring which I believe has a slightly higher ride height than that the saloon so not sure if the impact is the same.

Re Kerb weights from the 300c touring brochure

CRD = 1945kg, 5.7 Hemi = 1955kg, SRT = 2035kg

One last thing if you aren’t going to do this yourself the labour costs are pretty steep for any suspension change which is why I was attracted to the startech kit, as most of the stock stuff stays.

Cheers

K.