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Chain guide Freesolo 03 + BSA V2

ISCG 03 + BSA, 26-34T Round, 48-53mm Chain line, black
Producer: 77Designz , Producer product No.: FS-03-BSA-V2
Chain guide Freesolo 03 + BSA V2 V2
CHF 29.00 CHF 69.00 (CHF 69.00 / 69.00)
+ shipping costs


1x chain guide for cross country, all mountain and enduro mountain bikes weighing just 16 gram. Mounted without crank disassembly, keeping chain securely in place. The FREESOLO ™ by 77designz is probably the lightest fully adjustable chain guide in the world. Now with Front Flip Technology for tool free service on the trail.

Technical specifications

Weight: 16g (incl. mounting hardware)

Mount: ISCG 03+BSA (44-44.6 mm diameter.) Use BB REDUCER for Bottom Brackets with smaller diameter.
Not compatible with e13 or Race Face Cinch BSA30 Bottom Brackets (Diameter is too big).
Capacity: 26-34T Round
Chainline: 48-53 mm (Boost Ready)

Compatibility: 1x10, 1x11 or 1x12 drivetrain

Backplate: AL 7075 T6 Black Anodized

Slider: PA66 GF 10 (Front Flip Technology)

Hardware: Torx 25 Titanium Screws

Color: Black

Included: Chainline Spacer Set / 1x M6x11 Torx 25 Ti Bolt


  • Install without crank removal
  • Torx 25 only single tool installation
  • Boost compatible
  • Titanium Torx 25 hardware
  • Incredible Light
  • Front Flip Technologie for tool free service
  • Open cage for better mud release

Which Chainguide fits my bike?

Use the 77Designz FRAME FIT form to find the right chainguide for your bike.


  • Not compatible with Bionicon and Garbaruk direct mount oval rings 30T / 28T / 26T due to smaller Chain Line
  • The FREESOLO works only with 1*10 drives if you have an clutch rear derailleur and an narrow / wide chain ring

What means +BSA?

+BSA means that the backplate of the Chainguide spots it self on the BSA BB shell.