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Fitment Guide


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Austin Healey 100 / 4 (BN1 & BN2)

Body Sports
Engine 2660 cc / 4 cylinder
Year 1952 - 1956

Wheels

Original XW450
Rim Size 4" x 15"
Centre 42mm Curly
Number of Spokes 48
Finish Chrome or silver-painted
Lacing Outer
Inset (mm) 19
Back Spacing (mm) 83 (+/- 3)

Click here to view an explanation of inset, outset and back spacing.
Tyre 5.90 x 15 (original crossply) or 165R15 (modern radial)
Tube The chrome wheels have been tubeless since March 2019; and the silver-painted wheels have been tubeless since May 2018.

If you have older, tubed wheels or are fitting tube-type tyres you will need 155/165 x 15 tubes - available with either metal (race) or rubber (road) valve

This wheel is laced to the outer part of the rim only and so does not require a rim band
Notes  

Other Wheel Options

Options XW452
XW457
 
Rim Size4½" x 15"5½" x 15" 
Centre42mm Curly42mm Curly 
Number of Spokes6072 
FinishChrome or silver-paintedStainless steel, chrome, silver-painted or black-painted 
LacingInner & OuterInner & Outer 
Inset (mm)1712.7 
Back Spacing (mm) 87 (+/- 3)

Click here to view an explanation of inset, outset and back spacing.
95.5 (+/- 3)

Click here to view an explanation of inset, outset and back spacing.
 
Tyre165R15185/70R15 
TubeTubeless

The chrome and the silver-painted wheels have been tubeless since October 2008.

If you have the older, tubed wheels or are fitting tube-type tyres you will need 155/165 x 15 tubes - available with either metal (road) or rubber (race) valve. We recommend 15"/16" rim bands.
Tubeless

The chrome wheels have been tubeless since December 2007; and the silver-painted wheels have been tubeless since April 2008.

The stainless steel and black-painted wire wheels have always been tubeless. 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 175/185 x 15 tubes and we recommend 15"/16" rim bands.
 
NotesThis wheel will only fit on vehicles fitted with narrow brake drums - the wheel will foul the back spokes if fitted to a vehicle with wide brake drums. See notes below.

This wheel will fit if the vehicle has been converted to disc brakes.
This wheel fitment can get tight between the shock absorbers and the spokes. 
Options XW459
XW5743
 
Rim Size5" x 15"4½" x 15" 
Centre42mm Curly42mm Curly 
Number of Spokes7272 
FinishStainless steel, chrome, silver-painted or black-paintedSilver-painted only 
LacingInner & OuterInner & Outer 
Inset (mm)6.419 
Back Spacing (mm) 83 (+/- 3)

Click here to view an explanation of inset, outset and back spacing.
89 (+/- 3)

Click here to view an explanation of inset, outset and back spacing.
 
Tyre165R15165R15 
TubeTubeless

The chrome wheels have been tubeless since June 2007; the silver-painted wheels have been tubeless since April 2011; and the stainless steel wheels have been tubeless since October 2008.

The black-painted wire wheels have always been tubeless. 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 155/165 x 15 tubes and we recommend 15"/16" rim bands.
Tubeless

This wheel has been tubeless since September 2009.

If you have the older, tubed wheels or are fitting tube-type tyres you will need 155/165 x 15 tubes and we recommend 15"/16" rim bands.
 
NotesThis wheel will fit without any clearance problems.This wheel will only fit on vehicles fitted with narrow brake drums - the wheel will foul the back spokes if fitted to a vehicle with wide brake drums. See notes below.

This wheel will fit if the vehicle has been converted to disc brakes.
 
Notes  
Warranty Stainless Steel and 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

Option 1BN1 - Integral Front and Bolt-on Rear 12 TPI (Fine Thread):

RSK361 - Front Left
RSK360 - Front Right

Integral fitting hubs so no nuts necessary

RSK271 - Rear Left
RSK270 - Rear Right

The original "Philedas Nuts" can be used for the Bolt-on rear splines but it is recommended to replace them. The BN1 has BSF Thread.

Bolt-on splines were fitted as original equipment to this vehicle so will not increase the track

Studs will require shortening, click here for a diagram

Click here for a guide to fitting hubs, caps and centre-lock wire wheels
Option 2BN2 - Integral Front and Bolt-on Rear 12 TPI (Fine Thread):

RSK393 - Front Left
RSK392 - Front Right

Integral fitting hubs so no nuts necessary

RSK271 - Rear Left
RSK270 - Rear Right

The original "Philedas Nuts" can be used for the Bolt-on rear splines but it is recommended to replace them. The BN2 has UNF thread.

Bolt-on splines were fitted as original equipment to this vehicle so will not increase the track

Studs will require shortening, click here for a diagram

Click here for a guide to fitting hubs, caps and centre-lock wire wheels

Spinners

Code KCK057-12LH/KCK056-12RH
KCK049LH/KCK048RH
Type Knock-on centre caps Knock-on centre caps
Size 42 mm 42 mm
Thread 12 TPI 12 TPI
Ears 0 2
Logo Plain (no logo) Plain (no logo)
Notes Continental style octagonal spinner
 
Requires a spinner spanner to tighten/loosen caps.

Click here for advice on how tight to apply spinners.
We recommend using our 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.

Retaining Nuts

      

Extra Information

Other comments BN1 to Chassis number 228026

BN2 from Chassis number 228047 to 233455

"On the BN2 model, from chassis 228047, the front brake drums were also widened from 1¾in to 2¼in." (Source : The Original Austin Healey Restorers Guide by Anders Ditlev Clausager ISBN 0-7603-1225-7)

The original prototype was fitted with "A90" style disc wheels but were replaced by wire wheels - all 100s were manufactured using wire wheels.

Always check the history of the vehicle to ensure that there have been no modifications to the running gear.

Hubs/splines, spinners and nuts remain the same, unless noted otherwise, regardless of which wheel is fitted.

We also stock wire wheel maintenance accessories such as our Cleaning Kit (Refills available), Cleaning Brush, Degreaser and Tyre Foam.

If you require any more information or advice please contact us:

UK - 01753 549 360 - e-mail Sales

Overseas - +44 1753 598 382 - e-mail Isabella

Pictures


XW450 Chrome

XW450 Silver-painted

XW452 Chrome

XW452 Silver-painted

XW457 Chrome

XW457 Silver-painted

XW457 Black-painted

XW459 Stainless Steel

XW459 Chrome

XW459 Silver-painted

XW459 Black-painted

XW5743 Silver-painted

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UK Sales: 01753 549 360
UK Fax: 01753 547 170
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Motor Wheel Service International Ltd, Units 1-4 Elder Way, Waterside Drive, Langley, Slough, Berkshire, SL3 6EP, UK
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