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558
Belt Drive
BDL 8mm Belt Drive avail-
able
 in 1¹⁄₂”, 2” and 3” for 
all 1936-84 Big Twins with 
4-Speed Transmission with 
Kick start on electric start. 
Can be used with stock type 
clutch or BDL Competitor 
Clutch. All 2” and 3” Belt 
Drives include Big Fix Bearing 
Kit.
1¹⁄₂” Kick Starter only (Open or Closed Primary)
VT No. 
Fits 
Belt 
Front Pulley  Rear Pulley 
20-0611 1936-54 20-0102 
20-0905 
20-0919
20-0612 1955-64 20-0102 
20-0906 
20-0919
20-0613 1965-78 20-0102 
20-0907 
20-0919
20-0614 1979-84 20-0102 
20-0904
1¹⁄₂” Kick and Electric Starter (Open or Closed Primary)
20-0615
 1965-78 20-0100 
20-0904 
20-0918
20-0616 1979-84 20-0102 
20-0904 
20-0918
20-0617 1979-84 20-0100 
20-0904 
20-0918
 
2” Kick Starter Only (Open Primary)
 1936-54 
20-0104
20-0619 1955-84 20-0104 
20-0911
3” Kick Starter Only (Open Primary)
 1936-54 
20-0105 
20-0912
20-0621 1955-84 20-0105
BDL 11mm 1
1
/
2
” Belt Drive Fits 1936-84 4-Speed Big Twin 
with kick or electric starter and can be used with stock clutch 
or BDL Competitor Clutch. All 1965-up Drives include idler 
bearing assembly.
Kick Starter Only
VT No. 
Fits 
Belt 
Front 
Rear
 
 
Pulley Pulley 
20-0622 1936-54 20-0117 
20-0908 
20-0921 
20-0623 1955-64 20-0117 
20-0909 
20-0921 
20-0624 1965-84 20-0117 
20-0909 
20-0921 
Kick and Electric Starter
20-0625
 1965-84 20-0117 
20-0909 
20-0922
20-0626  1979-84   20-0117 
20-0909 
20-0922
 
with Rear Belt Drive
Electric Start 5-Speed FLT-FXR
20-0633
 1979-84        — 
       — 
A-Clutch Dome For Big Twins is a highly polished clutch 
dome which gives that finished custom look to our open belt 
drive units. 
VT No. 
Type
20-0334 
3 Hole, Polished
20-0335   3 Hole, Chrome 
B-Clutch Releasing Disc. Precision machined aluminum 
pressure plate for all 1941-84 Big Twin.
20-0332 Polished 
C-Bearing Support is used when cast aluminum inner pri-
mary cover is removed for installation of open belt drive on 
1965-84 Big Twin 4 speed, the main shaft requires additional 
support.
20-0228   Chain type fits with belt front and rear chain drive 
20-0227 
Belt type, with front and rear belt 
12-0313   Bearing for VT No. 20-0228
12-0379 
Bearing for VT No. 20-0227
C
B
A
20-0228
20-0621
20-0615
20-0612
22-0227
1980-83 FXB Belt and Pulley Replacements.
VT No. 
OEM 
#  Item
20-0309 
24051-80 
B  Spacer .012
20-0310 
24052-80 
B  Spacer .023
20-0311 
24053-80 
B  Spacer .035
20-0312 
24054-80 
B  Spacer .055
18-1135 
33163-65B 
C  Ring Gear
BDL Replacement Starter Ring Gear for 
8mm and 11mm 4-Speed belt drives.
VT No. 
20-0933  
1¹⁄₂” x 8 mm or 11 mm Belt Drives
20-0965  3” Belt Drives
Note: There is no warranty on belts when sold as part of kit or 
individual replacements.
Note: No warranty on belts sold when as part of kit or individual replacements.