Felt $3,650 AR4

Triathlon Magazine Canada - - Gear Review Aero Road Bikes -

Another­main­stay in the triathlon realm, it comes as no sur­prise that Felt has used its tri back­ground to come up with a speedy and aero road frame. Felt boasts im­prove­ments to the AR se­ries that take into ac­count real world aero­dy­nam­ics. The frame’s tubes are sleek at all yaw an­gles, not just those in a wind tun­nel. Thanks to the Var­iMount seat­post, the ef­fec­tive seat tube an­gle can be changed from 72.5 de­grees to 78.5 de­grees, which al­lows you to set this bike up as a shal­low-an­gled road ma­chine or as steep as a full-f ledged triathlon bike. Add to that the new fork de­sign that is very sim­i­lar to the DA triathlon frame­set and you have a bike that’s more than ca­pa­ble of be­com­ing an ex­cep­tional time trial or triathlon rig. Ca­bles tuck into the frame be­hind the head­set and a carbon aero seat­post adds to the aero ad­van­tages of the frame. To shed a bit of weight the frame uses Shi­mano’s Ultegra SL com­po­nents. The ar4 is stiff enough lat­er­ally to be a sur­pris­ingly nice climb­ing ma­chine, while also ab­sorb­ing lots of road vi­bra­tion to en­sure a com­fort­able ride.

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