8402-OVAL-104-32T-Black-Chainring tn

Burgtec Oval 104mm BCD Thick Thin Chainring

  • $119.99
Tax included. Shipping calculated at checkout.


“After over a year of testing we are pleased to release our Oval Chain Ring”

Does a mechanical advantage of increased gearing sound Interesting? If so read on.

Through research and testing of many different prototypes with varying amounts of Ovality we found 115% (from the top centre) to be the optimum.

This shrank the dead spot suitably and gave the same flawless chain retention and silence as our round rings.  The shortening of the dead spot on the top and bottom of the power curve allows you to get back into the power phase of your crank rotation sooner.

The benefit of this is twofold; increased gearing on the downward stroke and faster crank speed to get the crank propelled back around into the power phase continually. This is a significant gain because virtually all studies into pedalling performance suggest that a minimum 80% of your power  comes from the down ward motion. Mainly because much larger muscle groups are used for this motion. The physics sorcery essentially adds extra power in the down wards stroke for no extra effort by reducing the dead spot and adds a bigger gear for the now larger power phase in the downward stroke. Win win.

ONLY AVAILABLE IN 32T

All of our Chain Rings are + / -  2 Teeth so;

30T Has a combination of 32T Increased Power Phase and 28T Dead Spot

32T Has a combination of 34T  Increased Power Phase and 30T Dead Spot

We would recommend sticking to the current sized round ring that you are currently using when selecting your Oval size.

  • Thick Thin Tooth profile with Mud Bleed
  • 10 11 and 12 Speed Compatible
  • 115 Degree’s of Ovality
  • Fully CNC Machined from 7075 Aluminium

Using on a E-Bike?, please look at the steel E-Bike Chainrings

*Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions

*Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

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