“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.
Summit Cycles work will all major providers of the government backed Cycle to Work scheme. If you would like to buy a bike from us using the scheme your employer offers you will need to contact us to discuss the arrangements and eligibility of your purchase. Cycle to Work schemes are a great way to buy a bike and can offer a big saving on the price of your purchase but the ways that each individual scheme operate can vary so it is worth taking some time to find out exactly how your scheme works.
At Summit Cycles we aim to make our part of the process of buying by a Cycle to Work scheme as easy and as simple as possible. We can help you find the right bike and any accessories or extras you will need to make sure you are 100% ready to enjoy your purchased.
The best starting point is to speak with your human resources manager or the person responsible for administering the scheme your employer offers to find out who the provider is and the terms and conditions of the scheme they offer. You can often begin the application process by registering directly with the provider, often via their website. Many providers will ask us to provide a quote for the purchase so this is when you will need to speak to us to check eligibility and of course availability of your chosen bike but our staff can help you make the best choice, guiding you to the right bike and accessories and then raising the information you will need.
Processing can take a little time but often we can secure the bike you want with the payment of a deposit, refundable when the scheme provider issues confirmation certificate or payment.
|SKUs / Part Numbers
Please note: Manufacturers can sometimes change the specification of the products from time to time.
Trust our 14 years of experience in the bicycle insurance industry. Our comprehensive, customisable, and competitively priced coverage includes easy online quotes, fast claims handling, and expert customer service.
We offer 10 days free cover with all new bikes purchased, provided by our insurance partner VeloLife. You will be covered for the first 10 days of ownership against theft and accidental damage, so you can purchase with confidence.
Give yourself the comfort of no obligation free insurance, make sure you have peace of mind from the moment you leave the store. If anything happens to the bike in the first 10 days of ownership, know you are covered!