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Burgtec Oval Thick Thin Chainring - 104 BCD

Code: BURG8401
  • £39.99
In Stock at Warehouse | Shipped in 3-5 days
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free UK delivery On orders over £50
Finance Available Click here for more information

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.

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

104 bcd is only available in 32T

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

WESTBROOK CYCLES DELIVERY NOTICE

UK Deliveries
FREE when you spend over £50.00 in a single order
Otherwise it's typically £3.99 per order
Delivery should be expected between 2-3 working days unless stated on product page.

Worldwide Deliveries*
Approximately 4-10 working days depending on country
via Parcelforce Signed Delivery (fully traceable service). Please add items to the basket to calculate delivery for desired country.

If your country isn't listed for delivery at checkout please contact us.

Delivery of Bikes
We ship all our bikes free of charge within the United Kingdom (excl. Jersey and the Channel Islands at this time) and all our bikes come pre-assembled with just a few tweaks required (Please see our Bike Build Instruction page for details of assembly required).

All our bikes undergo a safety check before being re-boxed for shipping which can during busy periods take a little longer to complete so whilst we aim to ship all our bikes within two working days of the order please allow for additional time for this process.

Signature Required
All our consignments irrespective of the carrier require a signature upon delivery, deliveries are typically made between 08:00 and 18:00 so please bare this in mind when choosing a delivery address.

Package Recycling
We do try when possible to reuse packaging from our own suppliers in order to send purchased items to our customers, we ask if the packaging is still in good condition after you've received your goods then please try to use it again or recycle if not possible.

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