Sunday, March 6, 2011

New Bike!

Standard garage door bike picture

I bought a new bike for my 56th birthday.  It's a stock Trek Madone 5.2, except for the Dura Ace 180 mm cranks.  True, I already had an awesome bike, but it was nearly 10 years old with over 20,000 miles.  Time marches on, and here are a few of the improvements in bicycle technology over that time:
  • They finally make a full carbon frame in 64 cm size!
  • The sloping top tube makes the main triangle smaller and more rigid
  • All tubes are custom-shaped - no more round tubes
  • The head set is oversize and longer
  • The seat stays are thinner to save weight
  • The chain stays are asymmetric (one side thicker, one side thinner)
  • The seat post is now part of the frame
  • The frame at the bottom bracket is HUGE and has NO FLEX
  • Brake and shifter cables are routed inside the frame
  • The handlebar tubing is larger diameter and more comfortable
  • The handlebar drop is not as deep
  • The brake hoods are wider and more comfortable
  • The wheel lugs and dropout are seamless with the frame
  • The shift levers are now carbon fiber
  • Bladed spokes front and back are more aerodynamic
  • Pedals are wider with replaceable wear plates
  • Compact crank has wider gear range than before, but with less weight
  • The rear cassette has 10 cogs now instead of 9 - more gears!
Another cool thing about this bike is that the sensor for speed and cadence is built into the left chain stay.  It's fully enclosed and transmitts wirelessly to the display mounted on the stem. 

 DuoTrap sensor/transmitter

A small magnet attached to one of the rear spokes measures speed, and another on the crank arm measures cadence.  Very cool, and no wires!

For a frame as stiff as this one, the ride is very compliant.  Comfortable.  I guess that's the reason for the all the non-round computer-shaped tubes.  I set up this bike to be very much like my old bike, except the handlebars are just slightly higher.  Not quite as aero, but a lot more comfortable.  Comfort.  That's going to be important during my next 10 years of cycling. 

1 comments:

Lauren said...

I pretty much know nothing about bikes. But it looks pretty cool to me. Have fun!