Self-Connecting System SL

An extra smart solution other than more or less easy-to-use connectors on a hub dynamo is: the SL system. The contact areas on hub and forks themselves make the connections. Ground connection is made at one fork end, phase connection at the other fork end with a contact plate insulated by an insulating plate in one dropout.

The SL system requires a specially reworked fork. This means retrofitting is not possible. We offer a wide range of dropouts and suitable contact parts for framebuilders who build steel forks. A few manufacturers offer aluminium forks prefabricated with SL dropouts in series.

made in Germany
5 years guarantee

SL Hub Dynamos

Many SON hub dynamo types are availbable as SL models:

  • SON 28 SL
  • SONdelux SL
  • SONdelux wide body SL
  • SON 28 Tandem SL
  • SON 28 disc 6-bolt SL
  • SON 28 disc center lock SL
  • SONdelux disc center lock SL
  • SONdelux 12 disc center lock SL
  • SON 28 12 disc 6-bolt SL
  • SON 28 12 disc center lock SL
  • SON 28 15 110 SL

Finishes and drillings are available same as on models with spade connections. See Hub Dynamos for Standard Forks and Hub dynamos for Thru Axles.

Stainless Steel Dropouts lasercut

6 mm thick, 2 eyelets

  • narrow braze tab (80 g/pair) 73701
    RRP in D 30,00 €
  • narrow braze tab, with lawyer lips (87 g/pair) 73703
    RRP in D 40,00 €
  • wide braze tab (87 g/pair) 73702
    RRP in D 30,00 €
  • wide braze tab, with lawyer lips (94 g/pair) 73704
    RRP in D 40,00 €
  • straight, narrow braze tab (81 g/pair) 73707
    RRP in D 30,00 €

Stainless Steel Dropouts precision casting

  • with lawyer lips (111 g/pair) 73720
    plug Ø 17 mm
    RRP in D 40,00 €
  • with lawyer lips, Slot 30° forwar d facing (95 g/pair) 73721
    plug Ø 16,4 mm disc
    RRP in D 40,00 €
  • with lawyer lips (95 g/pair) 73722
    plug Ø 16,4 mm non-disc
    RRP in D 40,00 €

Stainless Steel Dropouts straight

turned and milled, mat. 1.4305

  • plug Ø 10,7 mm 73730
    plug Ø 11,5 mm 73731
    plug Ø 13,6 mm 73732
    RRP in D 50,00 €

Mild Steel Dropouts lasercut

  • narrow braze tab, without lawyer lips, right contact side 73709
    narrow braze tab, without lawyer lips, left contact side 73710
    RRP in D 30,00 €
  • wide braze tab, with lawyer lips (94 g/pair) 73705
    RRP in D 36,00 €

Mounting Tool for Contact Plate

73600
RRP in D 40,00 €

Drilling Guide for Contact Plate Holes

3 x 3 mm diameter

73610
RRP in D 200,00 €

SL Counterbore Tool

24 mm diameter x 1mm

73620
RRP in D 240,00 €

Set of SL Tools for Aluminium Forks

Mounting Tool, Drilling Guide, Counterbore Tool, Aluminium-Drill, Gauge)

73650
RRP in D 600,00 €

Gauge

for right dropout

73611
RRP in D 50,00 €

Contact Plate

Stainless steel, 0.5 mm, bent

  • for dropout 73720, 73722 and aluminium fork 73120
    cable exit 30°
    RRP in D 3,00 €
  • for dropout 73701...05 73122
    cable exit 45°
    RRP in D 3,00 €
  • for dropout 73707, 73730...32 73124
    cable exit 0°
    RRP in D 3,00 €
  • for dropout 73721 73121
    cable exit 30° forward facing
    RRP in D 3,00 €
  • for dropout 73710 73123
    cable exit 45° forward facing
    RRP in D 3,00 €

Dummy Contact Plate

w/o cable tab

73125
RRP in D 2,00 €

Insulating Plate

Synthetic black

73110
RRP in D 3,00 €

Kit Contact Parts

Insulating plate, contact plate with 500 mm cable

  • cable exit 30° 73120
    cable exit 45° 73122
    cable exit 0° 73124
    cable exit 30° forward facing 73121
    cable exit 45° forward facing 73123
    RRP in D 10,00 €

Cone Plate

Stainless steel, for connection with headlight bracket

73250
RRP in D 0,60 €

Ground Contact Plate

for left mild steel dropout, stainless steel, 1 mm

73760
RRP in D 2,00 €

Solder Plate

stainless steel, for standard dropout

73750
RRP in D 5,00 €

Forkends for 12 mm Thru Axle

Fork ends M 12 x 1 73770
Fork ends M 12 x 1,5 73771
RRP in D 40,00 €

Kit Contact Parts for 12 mm Thru Axle

with cable

73106
RRP in D 12,00 €

Kit Contact Parts for 15 mm Thru Axle

with cable

73108
RRP in D 12,00 €