Amgen tour of California 2012

powered by Performance Bicycle

TechPowered By

More tech

Pro bike: Tyler Wren's Boo Bicycles BooCX

  • Tyler Wren's Boo Bicycles CX could be considered 'another composite bike' - only the main composite used here isn't carbon fibre.

    Tyler Wren's Boo Bicycles CX could be considered 'another composite bike' - only the main composite used here isn't carbon fibre.

    Photo credit © Emily Wren/www.emilywren.com

  • KCNC provides some lightweight bits to shave a few grams.

    KCNC provides some lightweight bits to shave a few grams.

    Photo credit © Emily Wren/www.emilywren.com

  • Rather than use bamboo exclusively from end to end, Boo Bicycles creator Nick Frey wisely uses carbon fibre for higher-stress areas.

    Rather than use bamboo exclusively from end to end, Boo Bicycles creator Nick Frey wisely uses carbon fibre for higher-stress areas.

    Photo credit © Emily Wren/www.emilywren.com

  • Given the natural bamboo materials, slight imperfections are to be expected and add to the bike's character.

    Given the natural bamboo materials, slight imperfections are to be expected and add to the bike's character.

    Photo credit © Emily Wren/www.emilywren.com

  • The carbon fibre bottom bracket area includes a conventional threaded shell.

    The carbon fibre bottom bracket area includes a conventional threaded shell.

    Photo credit © Emily Wren/www.emilywren.com

  • Wren uses TRP's wide-profile EuroX cantilevers for extra mud clearance.

    Wren uses TRP's wide-profile EuroX cantilevers for extra mud clearance.

    Photo credit © Emily Wren/www.emilywren.com

  • Edge Composites' all-carbon 'cross fork reportedly weighs just 450g.

    Edge Composites' all-carbon 'cross fork reportedly weighs just 450g.

    Photo credit © Emily Wren/www.emilywren.com

  • Edge Composites' carbon bar uses a semi-anatomic bend for flexible positioning in the drops.

    Edge Composites' carbon bar uses a semi-anatomic bend for flexible positioning in the drops.

    Photo credit © Emily Wren/www.emilywren.com

  • Wren uses Challenge's latest Fango tread for better grip than its more traditional Grifo pattern.

    Wren uses Challenge's latest Fango tread for better grip than its more traditional Grifo pattern.

    Photo credit © Emily Wren/www.emilywren.com

  • The SRAM Red crankset is fitted with 'cross-specific 39/46T chainrings.

    The SRAM Red crankset is fitted with 'cross-specific 39/46T chainrings.

    Photo credit © Emily Wren/www.emilywren.com

  • In keeping with bamboo's natural form, all of the tubes are essentially round.

    In keeping with bamboo's natural form, all of the tubes are essentially round.

    Photo credit © Emily Wren/www.emilywren.com

  • The SRAM Force front derailleur is bolted to a removable tab.

    The SRAM Force front derailleur is bolted to a removable tab.

    Photo credit © Emily Wren/www.emilywren.com

  • External machining of the bamboo tubes yields a flush outer surface with the adjoining carbon sections.

    External machining of the bamboo tubes yields a flush outer surface with the adjoining carbon sections.

    Photo credit © Emily Wren/www.emilywren.com

  • A fi'zi:k Aliante k:ium saddle is mounted atop Edge Composites' new carbon seatpost.

    A fi'zi:k Aliante k:ium saddle is mounted atop Edge Composites' new carbon seatpost.

    Photo credit © Emily Wren/www.emilywren.com

  • The rear brake housing stop is hung off of the seatpost collar instead of incorporated into the upper stays.

    The rear brake housing stop is hung off of the seatpost collar instead of incorporated into the upper stays.

    Photo credit © Emily Wren/www.emilywren.com

  • The CNC machined aluminum dropouts include a replaceable derailleur hanger.

    The CNC machined aluminum dropouts include a replaceable derailleur hanger.

    Photo credit © Emily Wren/www.emilywren.com

  • The bamboo section of the seat stays starts only below the brake mounts.

    The bamboo section of the seat stays starts only below the brake mounts.

    Photo credit © Emily Wren/www.emilywren.com

  • Wren has posted some good results this year on his bamboo machine, too, including a 10th place finish at the UCI C2 'cross event in Wissahickon, Pennsylvania back in October.

    Wren has posted some good results this year on his bamboo machine, too, including a 10th place finish at the UCI C2 'cross event in Wissahickon, Pennsylvania back in October.

    Photo credit © Emily Wren/www.emilywren.com

  • Edge Composites' second-tier 2.68 rims visually differ from the top-end 1.68 with their woven top sheet.

    Edge Composites' second-tier 2.68 rims visually differ from the top-end 1.68 with their woven top sheet.

    Photo credit © Emily Wren/www.emilywren.com