Danish bicycle VIN-system

VIN from Ebsen Danmark A/S placed on the seat tube
(rotated version for readability)

The Danish bicycle VIN-system is a system introduced in 1942 by the Danish government, providing all bicycles in Denmark with a unique code. The code is a combination of letters and digits embedded into the bicycle frame and consists of a manufacturer code, a serial number, and construction year code.

Since 1948, it has been illegal^[1] to sell bicycle frames in Denmark without an embedded VIN. Because of this, insurance companies in Denmark will not pay indemnities for stolen bicycles without a VIN.^[2]

Location of the VIN

By default, the VIN is to be engraved into the seat tube or the down tube, but if these are made of such a material that hinders this, it may alternately be put on the bottom bracket shell. In very special instances, and only with the approval of the Danish National Police Commissioner’s Office, it may be applied by other means and on other locations.^[1]

Components of the VIN

The bicycle VIN is constructed of three elements: a letter-block, a digit-block and a letter-block:

Block	1	2	3
Description	Manufacturers code	Frame serial number	Production year
Length	1-4 (letters)	1-∞ (digits)	1 (letter)

Example 1	WDA	1234	Z
Example 2	S	57	A

The manufacturers-code, is a 1, 2, 3 or 4-letter block. If the code starts with a W, it is an imported bicycle frame. The second block is the frame serial number from that manufacturer. This shall have at least one digit, but can otherwise have any number of digits. The third block is a single letter code that identifies the production year. Certain limits regarding letters are instated for the VIN:^[3]

I is omitted as it can be confused with 1 (one)
O is omitted as it can be confused with 0 (zero)
Y is omitted as it can be confused with V
Since 1956 Q is omitted, as it can be confused with 0 (zero)
W is omitted, to avoid confusion with the manufacturer code (where W is reserved for imported frames)

In the examples above, the first bicycle is a bicycle imported by FDB, with serial number 1234 and made in either 1963, 1984 or 2005. The second bike is a SCO bicycle, with serial number 57, made in 1942, 1964, 1985 or 2006.

Common manufacturer codes

This table shows examples of manufacturer codes, but is in no way to be considered a complete listing.

Code	Manufacturer name	Code	Manufacturer name	Code	Manufacturer name
A-G		H-P		R-Å
AK	Centurion (previously Åge Krøll)	HN	Hede Nielsens Fabrikker A/S	RD	Scandinavia Racing Discount
AR	Raleigh (previously Vilhelm Nellemann A/S)	IA¹	Ivan A Hansen	REC	Recykel ApS
AV	Winther cykler (alias Anders Winther A/S)	IC²	Ebsen Danmark A/S	SI¹	Søgreni cykler
AZ	Jørgensø Import	JE	Jupiter	S	SCO (alias Smith & Co)
BA	Banani (previously Bent A Nielsen)	JKH	Jyde-Kompagniet A/S	SS	SCO (alias Smith & Co)
BL	SCO bicycles sold in the Bilka supermarket chain (see also S)	JWG³	Cykelbanditten	STE	Stangerup Efterfølgere
BK	Kildemoes (alias Børge Kildemoes)	KM	Motobecane	SX	Saxil cykler (also see BN)
BN	Saxil Bicycles (SX until approx. 2000)	LL	Sorte Jernhest	TU	Trek
BT	Taarnby a/s	MB	MBK	TV	Batavus
CC	Christiania Bicycles (also Pedersen-cyklen)	MR	Ritter Import	UR	Urania cykler
CGE	Cykelgear.dk	N	Nordisk Cykelfabrik A/S	VI	VIVA bikes
CK	Jensen cykler (alias C K Jensen)	NH	Nihola Cykler ApS	VEL	Velorbis
CM	Mosquito	PA	Pedal-atleten	VG	Grebart cykler
CS	Christiania Bicycles	PD	Styer-Puch A/S
DA	FDB	PF	Peter From
DB	Rocky	POL	VIN provided by the police - usually for private import
DI¹	Dibbern Cykler	PL	CREATE
EE	Egedesø (alias Everton)	PR	Pro Movec
FAK	Falcon	PS	Schrøder cykler
GD	Titania Cykler	PY	Python Pro
GW³	G&W Cykler

¹: Even though I in general is not used, it appears that some brands are using it.
²: Even though I in general is not used, Ebsen Danmark A/S bicycles are in fact using it in their manufacturercode (verified).
³: Even though W in general is not used, it appears that some brands are using it.

Production year identification codes

A	B	C	D	E	F	G	H	J	K	L	M	N	P	Q	R	S	T	U	V	X	Z
1942	1943	1944	1945	1946	1947	1948	1949	1950	1951	1952	1953	1954	1955	1956	1957	1958	1959	1960	1961	1962	1963
1964	1965	1966	1967	1968	1969	1970	1971	1972	1973	1974	1975	1976	1977	-	1978	1979	1980	1981	1982	1983	1984
1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998		1999	2000	2001	2002	2003	2004	2005
2006	2007	2008	2009	2010	2011	2012	2013	2014

References

1 2 "Lov nr. 135 af 23. marts 1948: Bekendtgørelse af lov om mærkning af cykelstel m.v." (in Danish). 1948-03-23. Retrieved 2011-06-18.
↑ Lund, Preben (2011-06-12). "Demand for marking of stolen goods". DR Nyheder (in Danish). Retrieved 2011-06-18.
↑ Dansk Cyklist Forbund. "How to decode the bicycles age" (in Danish). Retrieved 2011-07-07.

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