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Tour Tech: Look debuts aggressive 675 endurance frame

  • By Caley Fretz
  • Published Jun. 30, 2012

LIÈGE, Belgium (VN) — With the introduction of its brand-new 675 endurance frame, Look has pulled off a neat trick: a relaxed bike that doesn’t look like a begging dog — high in handlebar, low in top tube, and utterly unaggressive.

The company has neatly integrated its proprietary A-Stem into the top tube, creating a smooth line from bars to seat tube and keeping an aggressive look despite high bars and relaxed geometry. The new frame slides into the space between Look’s 566 and 560 SL, and is aimed squarely at the quickly filling endurance road market with its combination of relaxed fit and engineering cues directed at increasing comfort.

We have no idea how it actually rides, but the look (no pun intended) is certainly brilliant.

The A-Stem integrated stem system is similar to the one Look already uses on its 920 mountain bike, and despite its proprietary mount system, still offers range of adjustment and comes in multiple lengths and angle options. Each version can be flipped and moved 3cm up or down, providing a total vertical adjustment range of 6 to 8 centimeters, depending on stem length. That’s still quite a bit less than a standard stem setup, of course, so buyers should double-check geometry and get a good fit before pulling the trigger.

Look went with a more standard Press Fit BB86 bottom bracket, rather than the proprietary BB used on the 695. The 675 gets internal cable routing designed for easy swaps between Di2, EPS and mechanical drivetrains, and a Di2 battery mount under the bottom bracket as well.

The fork is a full-carbon affair and has been designed specifically around the 675 and the A-Stem. Headset adjustment is performed by tightening a carbon ring on an offset thread placed on the fork’s pivot, making it possible to change stem height without affecting headset adjustment.

Concessions to comfort are mainly centered on the rear triangle, where Look employs its Dual Comfort and Stiffness Concept (DCSC 2), which involves flattening both the seat and chain stays while maintaining their outer diameter. The shape increases vertical compliance by 25 percent, according to Look. A standard 27.2mm seatpost is also used to help improve comfort.

Weight is claimed at 1150 grams for a medium frame, with a 350-gram fork.

Availability is set for October of this year, with prices for an Ultegra build starting around $4000. Two colors will be available: the red/black/white option shown here, and a black-on-black option.

 

FILED UNDER: Bikes and Tech / News / Road / Tour de France TAGS: /

Caley Fretz

Caley Fretz

Tech Editor Caley Fretz came on board with VN in September 2010, and now splits his year between Boulder, Colorado and Annecy, France. Beyond his journalistic pursuits, he is a category 1 road, 'cross and track racer. He also holds a pro XC mountain bike license, though unlicensed racing is now more his style.

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