HD® classified

The first letter denotes:
F – Big V-Twin Motor
X - Sportster models and opposed twin
V - (VRSC ) Revolution Motor,V-Twin Racing Street Custom
The second letter denotes:
L – Large Diameter forks, big fat front tire
X - Small Diameter forks, small tin front tire
The third letter denotes:
C - Competition
CR- Cafe racer style
D – Dyna frame
E – 61 cubic inch Big V-Twin Motor
G - Servicar three wheeler
H – High compression 9:1 after 1958
HT – Highway Touring frame
K – Side valve 45 and 55 cubic inch
L – High compression 7.5:1 before 1957
ST - Softail frame
T- Touring frame
The rest of letter(s) denotes:

A – Military
B – Battery start
B - Belt drive
B – Black paint
DG – Disc Glide
E – Electric start
F - Foot shift
F - Fat Boy
H – High performance
I – Fuel Injection.
LR- Low Rider
N – Nostalgia
P - Police version
R – Rubber mounted engine
R – racing version
S – Springer
S – Sports version
WG – Wide Glide
V – Side valve 74 cubic inch 1930-36
U - Side valve 74 or 80 cubic inch Big V-Twin Motor
W - Side valve 45 cubic inch
Harley-Davidson motorcycles are classified by chassis :
TOURING:
FL: 4-Speed Dresser
FLH: 4-Speed Electra Glide
FLHF : Electra Glide
FLHX: Street Glide
FLHRS: Road King Custom
FLHRSI : Road King Custom
FLHPI: Road King police model
FLHR: Road King
FLHRCI: Road King Classic
FLHS: Electra Glide Sport
FLHT: Electra Glide Standard
FLHTC: Electra Glide Classic
FLHTK: Electra Glide Ultra Limited
FLHTCSE: CVO Screamin Eagle Electra Glide
FLHTPI: Electra glide police model
FLHTCU: Ultra Classic Electra Glide
FLTCU : Rubber Mounted Dresser Classic Ultra
FLHTCUI: Ultra Classic Electra Glide
FLHTCUSE: CVO Screamin Eagle Ultra Classic
FLHXXX: Street Glide Trike
FLT: Rubber Mount Dresser
FLTC: Rubber Mount Dresser Classic
FLTCU: Rubber Mount Dresser Classic Ultra
FLHTCUTG: Tri Glide  Ultra Classic
FLTR: Road Glide
FLTRI: Road Glide EFI
FLTRX: Road Glide Custom
FLTRSE : CVO Screamin’ Eagle Road Glide
FLTRSEI: CVO Screamin Eagle Road Glide
SOFTAIL:
FXCW: Softail Rocker
FXCWC : Softail Rocker
FXS : Softail Blackline
FXST: Softail Standard
FXSTB: Night Train
FXSTBI: Night Train EFI
FXSTC: Softail Custom
FXSTD: Softail Deuce
FXSTS: Springer Softail
FXSTSSE : CVO Softail Springer Screamin’ Eagle
FXSTSB : Bad Boy
FXWG: Wide Glide
FLST: Heritage Softail
FLSTC: Heritage Softail Classic
FLSTF: Fat Boy
FLSTFE : Fat Boy Screamin Eagle
FLSTFB : Fat Boy Low
FLSTFI: anniversary Fat Boy
FLSTN: Softail Deluxe
FLSTS: Heritage Springer
FLSTSE : CVO Softail Convertible
FLSTSB: Cross Bones
FLSTSC: Springer Softail , Springer Softail Classic
DYNA:
FX: Dyna Superglide, Kick start
FXB: Dyna Sturgis Belt
FXD: Dyna Super Glide
FXDB: Dyna Street Bob Sturgis 1991
FXDC: Dyna Super Glide Custom
FXDF : Dyna Fat Bob
FXDFSE : CVO Fat Bob
FXDG: Dyna Glide Sturgis
FXDL: Dyna Low Rider
FXDS-CON: Dyna Convertible
FXDWG: Dyna Wide Glide
FXDX: Dyna Super Glide Sport
FXDXT: Dyna Super Glide T-Sport
FXE: Dyna Superglide Electric Start
FXLR: Dyna FX Lower Rider Evolution
FXR: Dyna Rubber Mount Super Glide
FXRDG : Disc Glide
FXRP : Police or pursuit – Defender
FXRS: Dyna FXR Sport
FXRS-CON: Dyna FXR Sport Convertible
FXRS-SP: Dyna Low Rider Sport Edition
FXRT: Dyna FXR Touring
FXS: Dyna Low Rider Shovelhead
FXSB: Dyna Low Rider Belt
SPORTSTER:
XL: Sportster
XL50 : Sportster 50th Anniversary Edition
XL883: Sportster 883
XL883C: Sportster 883 Custom
XL 883L: Sportster Low
XL883N : Sportster 883 Ironhead
XL883R: Sportster 883 Roadster
XL1100: Sportster 1100
XL1200: Sportster 1200
XL1200C: Sportster 1200 Custom
XL1200L : Sportster 1200 Low
XL1200N : Sportster 1200 Nightster
XL1200R: Sportster 1200 Roadster
XL1200S: Sportster 1200 Sport
XL1200X: Sportster Forty-Eight 1200
XLCH: 4-Speed Sportster, Kick start
XLCR: Sportster Cafe Racer 1000
XLH: Sportster Hugger 883
XLH883: Sportster 883 Hugger
XLH883R: Sportster 883R
XLH1200: Sportster 1200
XLH1200S: Sportster Sport
XLS: 4-Speed Sportster Roadster
XLX: 4-Speed 1000cc Ironhead
XR750 : dirt track racer
XR1000: XLX Sportster frame, XR750 engine, XLR Heads
XR1200X : Sportster 1200
V-ROAD:
VRSC: V-Rod
VRSCB: V-Rod, black frame
VRSCAW : V-Rod wide rear tire
VRSCF: V-Rod Muscle
VRSCD: Night Rod
VRSCDX: Night Rod Special
VRSCR: Street Rod
VRSCSE: Screamin’ Eagle CVO V-Rod Destroyer
VRSCSE2: Screamin’ Eagle CVO V-Rod