Burgtec Oval Thick Thin Chainring

Product Reference: BURCHAINOVAL
  • From £39.99
  • Highly engineered, top quality oval chainring
  • Thick Thin Tooth profile with Mud Bleed
  • 10 11 and 12 Speed Compatible
  • Available in 104, 96/64, GXP, RF Cinch (inc boost sizes)
  • 115 Degree’s of Ovality
  • Fully CNC Machined from 7075 Aluminium
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“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;
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.

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UK Delivery

All orders over £30 are eligible for free delivery

Standard 2-3 Days
Free delivery for orders over £30 otherwise £2.99

Priority 1-2 Days
Priority orders are given priority and go on a faster delivery service for when you need something quickly. 
£3.99

Next Day Courier Delivery
We aren't currently offering this as our carriers cannot guarantee next-day at present.

 

European Delivery

As of 23rd December 2020 we have suspended European delivery due to Brexit and Coronavirus chaos. We will monitor the situation and resume international delivery as soon as possible.

 

We deliver to most countries in Europe. Small items are sent by Royal Mail or DPD. 

EU: Free delivery on all orders over £150 or £7.99 on orders under £150

Outside EU: Free delivery on all orders over £150 or £9.99 on orders under £150

 

European Bike Delivery

Bikes are delivered by DPD or TNT.

EU: £90

Outside EU: £139

 

Returns

You can return any item within 30 days in original condition for a full refund or exchange. A returns label (unpaid) is included with all UK orders.

You can pay for your order with one of the following payment methods. 

  • Credit or debit card
  • AMEX
  • PayPal
  • Amazon Pay
  • DEKO 0% Finance
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