Bike Reviews > Nemesis

2012 Jamis Nemesis 650B Mountain Bike

2012 jamis nemesis 650b mountain bike   2012 Jamis Nemesis 650B Mountain Bike

A result of a meticulous experiment conducted by Jamis Bicycles is a new 650b mountain bike for 2012 called Nemesis. During the process, Jamis Bicycles found it difficult to make a choice between steel and aluminum, which lead to choosing neither.

Featured by the Nemesis 650 frame is a PressFit30 bottom bracket shell, Kinesis 7005 triple-butted SuperPlastic Formed (SPF) tubing, over-sized stays, and replaceable derailleur hanger. Its frame specs also include 1.5 – 1 1/8″ tapered head, sloping top, over-sized seat, and crown-clearing down tubes.

Along with the frame is the X-Fusion Velvet RL 650B fork that has 100mm travel, 32mm stanchions, air spring, tapered alloy steerer, and magnesium lower legs. Whether it is for epic trail riding or racing, the 2012 Jamis Nemesis 650B Mountain Bike is ideal for riders who are serious on the hardtails.

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2012 Motobecane Nemesis Triathlon Bike

2012 motobecane nemesis triathlon bike   2012 Motobecane Nemesis Triathlon Bike

For 2012, Motobecane has reintroduced its triathlon bike called Nemesis with some improvements to tackle the standards of professional triathletes. Manufactured from aero section Z-Matrix Alpha tubing, the main triangle of the frame is made more lightweight and it features a more compliant ride.

Crafted with a highly advanced design, the Shimano Aero 700c wheels feature medium-section rims and incredibly fast-rolling high-pressure tires. Power transfer is made more efficient by its new 78 degree seat tube angle. Each tube, as wells as the seat stays, is made aero.

Included in the new improvements of the 2012 Motobecane Nemesis Triathlon Bike are its enhanced speed and more aerodynamics from its frame and fork. Also new is its aero-section seat-post, which is created from advanced composite carbon fiber.

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