Trek Do­mane SLR 7

The en­durance bike gets smoother

Canadian Cycling Magazine - - ROAD TEST - Re­viewed by

TMatthew Pioro

here are no cob­bles where I live. But, of course, there are crummy roads. I took the Trek Do­mane slr 7 to one of the crum­mi­est in my area. In fact, the last time I was on this road was prob­a­bly three years ago. The cracks and pot­holes had bashed me around so much that I de­cided the road wasn’t worth rid­ing. To my sur­prise, the street was now get­ting resur­faced. On two of the four lanes, road crews had scraped away the top 3 cm of as­phalt leav­ing the per­fect test­ing ground for the rear and front Isospeed, Trek’s me­chan­i­cal meth­ods of man­ag­ing road vi­bra­tions. The road sur­face was rough, but con­sis­tent in its bumpi­ness. When the Do­mane de­buted in 2012, it had the Isospeed de­cou­pler, which al­lowed the seat tube a greater amount of move­ment be­tween the tops of the seat­stays. The Isospeed de­cou­pler on the lat­est Do­mane, launched this past spring, is ad­justable. Loosen a bolt on the seat tube to free up a slider. If you place the slider close to the top tube, you get the least amount of com­pli­ance. Move the slider to­ward the bot­tom bracket to get max­i­mum com­pli­ance. The slider es­sen­tially acts as a ful­crum that you use to ad­just the lever­age on this two-piece seat tube. You can tune your ride to suit your weight and road con­di­tions.

The front Isospeed, in the head tube, de­buted on the lat­est model. “There are three bear­ings in the head tube,” said Tim Har­tung, lead de­sign en­gi­neer for com­pos­ite road frames at Trek. “You have your stan­dard lower bear­ing. The pivot as­sem­bly up top ac­tu­ally has two bear­ings. In the mid­dle of those bear­ings, you have this pivot mech­a­nism, which we call Isospeed. That forces the steerer tube to flex fore and aft. It’s like the rear end: you get your fore-and-aft move­ment in

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