Mekk says its 2016 Primo race bike has a newly engineered frameset that sheds grams while gaining bottom bracket shell and chainstay stiffness, but also manages to be as comfortable as the previous model. Our test model is hardly in need of a diet, but the final production framesets will be lighter still.
Svelte carbon lines
The high-modulus Toray T800 carbon frame has a very narrow profile throughout, from the slim head tube to Kamm tail-profiled down tube and seat tube; deep, symmetrical chainstays and dropped aero seatstays. The rear wheel sits behind a generous seat tube cutout, with room for 25mm rubber. The front brake occupies its usual position, with the rear direct mount unit hidden beneath the chainstays.
Shimano’s electronic Dura-Ace Di2 was its usual faultless self
Cable routing for the brake runs internally from behind the headset to the bottom bracket, and the Di2 wires are barely noticeable. Our 56cm-equivalent frame has a 52cm seat-tube, and short 13cm head-tube, meaning that our usual race position required 30mm of spacers. If you like it fast and low, you’ll be in your element on a Primo.
Related: Mekk flagship Primo race bike redesigned
Surprisingly comfy speed merchant
You can read more at BikeRadar.com
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