Introduction
This guide will instruct on the installation process for e*thirteen Helix direct mount chainrings onto Helix Cranks
Tools
Parts
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Lay out parts on a clean workbench workbench.
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If installing ring on a used crank, ensure direct mount interface splines are clean.
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Identify the chainline requirements of your bike. Helix rings are flip-flop and can achieve either 53mm (Boost) or 56mm (Super Boost) by turning the ring over.
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Ensure splines are clean and add a very light layer of grease to the spline interface on the chainring.
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Slide the ring onto the direct mount splines with the chainline size you need facing outward and the arrow showing "Pedal" aligned with the crank arm access.
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Thread on the silver chainring lockring by hand until it bottoms out on the chainring.
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The chainring lockring will need to be tightened to 30Nm of torque.
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The preferred method to achieve correct torque spec is to use a torque wrench.
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The e*thirteen chainring lockring tool which is provided with the cranks has 2 interfaces which can be used - 36mm flats for a crowsfoot attachment or Shimano FC-32 Tool Spline interface.
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If a torque wrench is not available proper torque can also be achieved by turning the lockring 90 Degrees from it's hand tight snug position.
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If using the snug +90 degree method, the easiest way to achieve this is to put the chainring lockring tool in a vice. Alternatively a large crescent wrench can also be used.
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Ensure that the lockring is sitting below the cranks flange that interfaces with the BB.
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Reinstall crankset on bike and time for a ride!
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Thanks for reading, now get out there and ride!
Thanks for reading, now get out there and ride!