Black Friday Cycling Deals - 53% off Shimano Dura-Ace R9100 Dual-Sided Power Meter

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This sleek power meter is a great chainset option

For a limited time, this power meter is down to £699.94

Shimano Dura-Ace R9100 Power Meter
£699.94
Commerce content is independent of editorial, and Farrelly Atkinson earns commission from promoted products

Shimano's first power meter was, as per usual with Shimano, rather late to the party.

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Shimano tends to watch the release of new products, pick the good points from products, and then create their own version a few years later, generally without the flaws of rival products.

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It seems that the only slight flaw with this power meter is the slightly odd L/R balance readings which, if you can do without balance data, isn't really an issue in our experience.

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For those of us that have been using single-sided power meters, L/R balance data has never been needed, so going without it really isn't a problem.

Review: Shimano Dura-Ace R9100 Power Meter

For the money, you're getting Shimano's excellent Dura-Ace chainset with an internal power meter that offers data that is accurate to within +/-2%. 

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The battery is rechargeable and it'll connect via Bluetooth and ANT+, making this an easy power meter to live with.

Shimano Dura-Ace R9100 Power Meter
£699.94
Commerce content is independent of editorial, and Farrelly Atkinson earns commission from promoted products

About Shimano

In February 1921, Shozaburo Shimano opened Shimano Iron Works in Higashi Minato in Sakai City when he was 26 years old. On the site of a demolished celluloid factory, he rented a nearly 40-square-meter area. The monthly rent was 5 yen. At that time, the new establishment had only a single lathe, measuring about 1.8 meters long. Shozaburo Shimano decided to produce freewheels. Of all bicycle components, freewheels entailed the highest level of technology to produce.

Since then, Shimano has released some of our favourite cycling products with the current Ultegra Di2 Disc groupset being our pick of the bunch.

About Merlin Cycles

Merlin Cycles was initially a mail-order business started in June 1993 by John Moss in the spare bedroom of his house in Whittle Le Woods near Chorley. A few months later the company opened a shop premises in Ormskirk, Lancashire. In 1998 Merlin Cycles moved to larger shop premises in Leyland.

Merlin Cycles spent ten years on the Leyland premises. During this time they began designing their own mountain bikes, including the Rock Lobster steel hardtails and then the Malt aluminium hardtails.

From an original concentration on the UK mountain bike market, recent years has seen the company switch to catering equally for the increasing road cycling market. In 2008 the company moved to their current shop, warehouse and office premises in Buckshaw Village, Chorley.

In 2012 Merlin Cycles began as the sole importer of Dutch-based bike company Sensa. Merlin Cycles now have an exclusive UK deal with Sensa.

The deals listed on this page are the best deals on the best cycling products we can find. If you purchase anything as a result of clicking on a deal, Farrelly Atkinson Ltd may earn some commission: on some we do, on some we don’t. Any money that we earn goes in to paying for road.cc and its sister sites off.road.cc and ebiketips.