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Start by installing the correct size bash guard for your chainring size The smallest guard fits 28-30t chain rings
  • Start by installing the correct size bash guard for your chainring size

    • The smallest guard fits 28-30t chain rings

    • The middle guard fits 32-34t chain rings

    • The biggest guard fits 36-38t chain rings

  • Tighten the fixing screws to 0.9N*m using a T25 Torx wrench

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Start by opening upper slider Open the metal clip on the upper slider Flip the clip open
  • Start by opening upper slider

    • Open the metal clip on the upper slider

    • Flip the clip open

    • Release the latch and rotate open the upper slider

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Remove cranks from the bike
  • Remove cranks from the bike

  • Install the guide onto your frame or ISCG adapter (if one is needed) using the supplied T25 screws

    • It is recommended to use the longest screws possible to provide the strongest connection to the frame - two lengths are provided

  • Lightly tighten the screws until the backplate is snug against the frame

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Slide the cranks back into the BB and re-install per manufacturer’s recommendations Sight down the front of the guide to check if the guide is centered over the chain ring
  • Slide the cranks back into the BB and re-install per manufacturer’s recommendations

  • Sight down the front of the guide to check if the guide is centered over the chain ring

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If needed, use the provided ISCG05 C-spacers or washers to move the guide out from the frame until it is centered over the guide It may be necessary to remove the cranks to adjust the guide. However, in many cases it is possible to reach a T25 torx wrench through the chain ring to tighten and loosen the ISCG mounting screws. If using the C-spacers, removing the middle screw will make adjustments easier, just remember to replace it once you are satisfied with the guide placement!
  • If needed, use the provided ISCG05 C-spacers or washers to move the guide out from the frame until it is centered over the guide

    • It may be necessary to remove the cranks to adjust the guide. However, in many cases it is possible to reach a T25 torx wrench through the chain ring to tighten and loosen the ISCG mounting screws.

    • If using the C-spacers, removing the middle screw will make adjustments easier, just remember to replace it once you are satisfied with the guide placement!

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When the guide is centered over the chain ring, rotate the guide such that the upper slider fixing bolt is in the 12 o’clock position
  • When the guide is centered over the chain ring, rotate the guide such that the upper slider fixing bolt is in the 12 o’clock position

  • Tighten the ISCG mounting screws to 6N*m using a torque wrench

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Install the chain onto the chain ring Close the upper slider and clip the latch closed
  • Install the chain onto the chain ring

  • Close the upper slider and clip the latch closed

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Conclusion

Thanks for reading, now get out there and ride!

Dozuki System

Member since: 09/24/2009

12 Guides authored

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