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77designz Oval Guide ISCG05-38

SKU 1000106
Original price $74.90 CAD - Original price $74.90 CAD
Original price
$74.90 CAD
$74.90 CAD - $74.90 CAD
Current price $74.90 CAD
Since oval chainrings are very trendy for many of you, we offer our Oval Guide the lightest fully adjustable chain guide on the market. The assembly is done in no time and without disassembling the crank. The chain is held securely in any position on the oval chainring. The CNC milled scale makes it easy to adjust to the chainring size and the adjustment of the chain lines is a breeze with the help of a table and spacers. The front flip technology allows you to remove the chain without tools in case of a breakdown on the trail, or pull the crank out of the bottom bracket during service without having to disassemble the chain guide. The versions marked with the 38 have a chainring adjustment range of 26-38 teeth covers.


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


Mount: ISCG 05
Capacity: 28-36 Oval or 26-38T 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 Hollow Bolts
Weight: 23,1 gram (incl. mounting hardware)


Chainline Spacer Set
2x M6x11 Hollow Bolts
77designz Sticker

Installation with Crash Plate:

To mount our ISCG 05 models with the Crash Plate you need the Connector


!!! Not compatible with Bionicon and Garbaruk non boost chain rings (30T / 28T / 26T) due to smaller Chain Line !!!
!!! The FREESOLO works also with 1*10 drives if you have a clutch rear derailleur and an narrow / wide chain ring !!!