| MWS Fitment Guide | |||
| Car | Austin Healey 100 / 6 (BN4 & BN6) | ||
| Body | BN4 2+2; BN6 Two-seater Roadster | ||
| Engine | 2639 cc / 6 cylinder | ||
| Year | 1956 - 1959 | ||
| Wheels | ||
| Original | XW450 |
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| 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. |
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| 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 |
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| Notes | Disc wheels were standard fitment with wire wheels as an optional extra. | |
| Options | XW452 |
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XW457 |
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| Rim Size | 4½" x 15" | 5½" x 15" | ||||
| Centre | 42mm Curly | 42mm Curly | ||||
| Number of Spokes | 60 | 72 | ||||
| Finish | Chrome or silver-painted | Stainless steel, chrome, silver-painted or black-painted | ||||
| Lacing | Inner & Outer | Inner & Outer | ||||
| Inset (mm) | 17 | 12.7 | ||||
| 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. |
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| Tyre | 165R15 The Michelin 180R15 is known to be fitted by our customers; this tyre requires a 175/185 x 15 tube even if being fitted to a tubeless wheel | 185/70R15 The Michelin 180R15 is known to be fitted by our customers; this tyre requires a 175/185 x 15 tube even if being fitted to a tubeless wheel | ||||
| Tube | Tubeless 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 (race) or rubber (road) valve - or 175/185 x 15 tubes and we recommend using 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. | ||||
| Notes | 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. This wheel will fit if the vehicle has been converted to disc brakes. | This wheel will only fit if the vehicle has been converted to disc brakes. | ||||
| Options | XW459 |
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XW5743 |
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| Rim Size | 5" x 15" | 4½" x 15" | ||||
| Centre | 42mm Curly | 42mm Curly | ||||
| Number of Spokes | 72 | 72 | ||||
| Finish | Stainless steel, chrome, silver-painted or black-painted | Silver-painted only | ||||
| Lacing | Inner & Outer | Inner & Outer | ||||
| Inset (mm) | 6.4 | 19 | ||||
| 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. |
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| Tyre | 165R15 or 185/70R15 (fitment check recommended for clearances) The Michelin 180R15 is known to be fitted by our customers; this tyre requires a 175/185 x 15 tube even if being fitted to a tubeless wheel | 165R15 The Michelin 180R15 is known to be fitted by our customers; this tyre requires a 175/185 x 15 tube even if being fitted to a tubeless wheel | ||||
| Tube | Tubeless 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 - available with either metal (race) or rubber (road) valve - or 175/185 x 15 tubes and we recommend using 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 - available with either metal (race) or rubber (road) valve - or 175/185 x 15 tubes and we recommend using 15"/16" rim bands. | ||||
| Notes | 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. 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 1 | BN4 up to August 1957 - 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 BN4 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 | ||
| Option 2 | BN4 from November 1957 & BN6 - Integral Front and Bolt-on Rear 12 TPI (Fine Thread): RSK125 - Front Left RSK124 - Front Right Integral fitting hubs so no nuts necessary RSK045 - Rear Left RSK044 - Rear Right The original "Philedas Nuts" can be used for the Bolt-on rear splines but it is recommended to replace them. The BN4 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 | KCK049LH/KCK048RH |
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KCK057-12LH/KCK056-12RH |
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| Type | Knock-on centre caps | Knock-on centre caps | ||||
| Size | 42 mm | 42 mm | ||||
| Thread | 12 TPI | 12 TPI | ||||
| Ears | 2 | 0 | ||||
| Logo | Plain (no logo) | Plain (no logo) | ||||
| Notes | 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. |
Continental style octagonal spinner Requires a spinner spanner to tighten/loosen caps. We recommend using our copper and hide hammer to tighten/loosen the knock-on caps (spinners). |
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| Retaining Nuts | |||
| Extra Information | |||
| Other comments | BN4 Chassis Number BN4-L/22598 to C.BN4/77766 BN6 Chassis Number C.BN6/501 to C.BN6/4650 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 (info@mwsint.com) Overseas - +44 1753 598 382 - e-mail Isabella (isabella@mwsint.com) |
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| Pictures |
 XW450 Chrome |
 XW450 Silver-painted |
 XW452 Chrome |
 XW452 Silver-painted |
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 XW457 Chrome |
 XW457 Silver-painted |
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 XW457 Black-painted |
 XW459 Stainless Steel |
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 XW459 Chrome |
 XW459 Silver-painted |
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 XW459 Black-painted |
 XW5743 Silver-painted |