Bikeradar gallery

Interbike: Cervelo's new P4; Storck gets stiffer

With no brake mounted up top, the slim seat stays are free to sprout cleanly off the sides of the frame.

  • Cervélo officially unveiled its stunning new P4 during the first indoor day of the Interbike trade show.
  • The new P4 is definitely more of an integrated chassis than its P3C forebear.
  • The dropped down tube helps smooth airflow coming off of the front wheel.
  • Custom headset spacers mate perfectly with the bottom of the 3T Ventus stem.
  • Internally routed cables on the Ventus bar also help clean up the front end.
  • The frontal profile is rather clean.
  • Cervelo says the new P4 is substantially faster than the P3C.
  • An integrated bottle smoothes airflow around the bottom bracket area.
  • Cervélo says the P4 is faster with the bottle installed than without.
  • The giant asymmetrical chain stays stiffen up the rear end.
  • Even with their girth, Cervélo says the new chain stays are more aero than before.
  • The rear triangle is particularly clean. But hey, where's the rear brake?
  • With no brake mounted up top, the slim seat stays are free to sprout cleanly off the sides of the frame.
  • We're guessing air flows neatly off the rear edge of this area.
  • The rear brake is a custom Cervélo design and is housed entirely within the chain stays. The little gold knob is the quick release.
  • aluminium dropouts incorporate threaded adjusters.
  • The aero post offers two offsets…
  • …and the neat wedge-style clamp means there's no protruding clamps.
  • Naturally, aero tube profiles are used throughout.
  • Interestingly, the frame bears a giant 'P4' logo on the down tube instead of the usual Cervélo badge.
  • The internally routed cables feed into the housing stops accessed through the little port in the down tube.
  • A flip-top lid on the water bottle makes for easy on-the-go refilling.
  • The tube surfaces around the bottom bracket are extra clean since the brake is housed within.
  • Cervélo couldn't leave the unused saddle clamp hole empty, right?
  • Moving the rear brake down to the bottom bracket obviously afforded Cervélo much more freedom in shaping this area.
  • The driveside dropout isn't easily replaceable but at least it looks rather sturdy.
  • The asymmetrical chain stays are absolutely enormous.
  • The rear of the fork crown blends in well with the down tube.
  • The new P4 is decidedly sleeker looking than the P3C.
  • A purpose-built fork replaces the rather standard unit on other Cervélo aero frames.
  • The deep seat tube cutout shields the rear wheel.
  • The P4 intro was expectedly met with much fanfare.
  • Storck's Fascenario 0.7 is reputedly one of the lightest and stiffest bikes out there.
  • Storck aims to deliver most of the Fascenario's performance in a less expensive package with its new Fenomalist.
  • The Fenomalist basically uses the same rear triangle as the Fascenario but the front triangle of an Absolutist.
  • The Storck fork isn't particularly light but is expected to be rather stiff.
  • Big fat chain stays grace the rear end.
  • The top tube and down tube are both flattened on their lower surfaces to improve rigidity.
  • Even the housing stops are well done.

Showing 13 of 39

With no brake mounted up top, the slim seat stays are free to sprout cleanly off the sides of the frame.

© James Huang