Fitment Guide

AC Cars Ace, Aceca & Bristol

Body	Saloon and Sports
Engine	2 litre (1971 cc), 2.6 litre, 6 cylinder
Year	1953 - 1964

Wheels

Original	XW5786
Rim Size	4½" x 16"
Centre	42mm Curly
Number of Spokes	56
Finish	Chrome or silver-painted
Lacing	Inner & Outer
Inset (mm)	23.6 Outset
Back Spacing (mm)	47 (+/- 3) Click here to view an explanation of inset, outset and back spacing.
Tyre	550 x 16 crossply or 165R16 radial The original tyre was the 5.50x16 radial (!) Michelin X
Tube	The chrome wheel has always been tubeless. The silver-painted wheel has been tubeless since February 2019. Tubes are only required if fitting tube-type tyres. If you have the older, tubed wheels or are fitting tube-type tyres you will need 550 x 16 tubes - available with a metal (race) valve or rubber (road) valve - or 165 x 16 tubes - contact us for price and availability - and we recommend 15"/16" rim bands
Notes	Ace and Aceca were originally fitted with 4" x 16", centre laced, 48 spoke wire wheels, which have never been offered by MWS. A fitment check is recommended when fitting the XW5786 or XW5787 on AC Ace, which had originally been fitted with these 4" x 16" wire wheels. By 1957 this wheel was replaced by inner & outer laced, 56 spoke wire wheels. From 1959, 15" wire wheels were offered as an option. The majority of vehicles were factory fitted with painted (silver, cream or red) wire wheels, however, a few were originally fitted with chrome wire wheels.

Other Wheel Options

Options	XW5787
Rim Size	5½" x 15"
Centre	42mm Curly
Number of Spokes	72
Finish	Available from stock in silver-painted only. The chrome version of this wheel is only available to special order.
Lacing	Centre
Inset (mm)	35 Outset
Back Spacing (mm)	47.5 (+/- 3) Click here to view an explanation of inset, outset and back spacing.
Tyre	185R15 - we would recommend a fitment check due to possible clearance issues
Tube	Tubeless This wheel has always been tubeless. Tubes are only required if fitting tube-type tyres. If you are using tube-type tyres or wish to fit a tube for any other reason then you will need 175/185 x 15 tubes and we recommend 15"/16" rim bands.
Notes
Notes
Warranty	Chrome: two year structural and cosmetic Painted: two year structural and one year cosmetic The warranty period commences from the date of invoice and is subject to the wheels being maintained as per our Wheel Care advice and in conjunction with our Terms and Conditions. Please retain the warranty tag supplied with each wheel as it contains the information required to identify the wheel in the event of a claim. Please note: MWS warranty automatically becomes void if the wheels have been: subject to re-work or change; fitted with tyres other than the manufacturer’s recommended fitment; or used for track events.

Splined Hubs

Spinners

Code	KCK293LH/KCK292RH	KCK053LH/KCK052RH	KCBR4283L/KCBR4283R
Type	Knock-on centre caps	Knock-on centre caps	Knock-on centre caps
Size	42 mm	42 mm	42 mm
Thread	8 TPI	8 TPI	8 TPI
Ears	2	2	3
Logo	AC	Plain (no logo)	Plain (no logo)
Notes	Due to the positioning of the centre in relation to the rim we recommend using our extra-deep 42mm wooden spinner saver to protect the knock-on caps (spinners) when using a copper and hide hammer. Click here for advice on how tight to apply spinners.	Due to the positioning of the centre in relation to the rim we recommend using our extra-deep 42mm wooden spinner saver to protect the knock-on caps (spinners) when using a copper and hide hammer. Click here for advice on how tight to apply spinners.	We recommend using our copper and hide hammer to tighten/loosen the knock-on caps (spinners). Click here for advice on how tight to apply spinners.

Retaining Nuts

Extra Information

Pictures

XW5786 Silver-painted
XW5787 Silver-painted	AC Aceca fitted with XW5787 Silver-painted

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