Features Road Under the influence By Wendy Booher published 9 September 2007 Starting Thursday, September 6, defending world downhill champion Sabrina Jonnier will need to... Comments Image 1 of 24Jonnier's Iron Horse Sunday World Cup(Image credit: Wendy Booher)Metal to the pedal(Image credit: Wendy Booher)WTB provides Jonnier(Image credit: Wendy Booher)There's no question(Image credit: Wendy Booher)Rock Shox's new Vivid 5.1 rear shock(Image credit: Wendy Booher)A small piece of foam(Image credit: Wendy Booher)Jonnier runs DT Swiss 440 FR hubs(Image credit: Wendy Booher)The Rock Shox Boxxer(Image credit: Wendy Booher)Sabrina Jonnier just seconds after winning her second national downhill title.(Image credit: Wendy Booher/Cyclingnews.com)Brand new national champ Sabrina Jonnier basks in the glory.(Image credit: Wendy Booher/Cyclingnews.com)Already resplendent in rainbow stripes, Sabrina Jonnier will add the "bleu, blanc, rouge" jersey to her collection.(Image credit: Wendy Booher/Cyclingnews.com)Something to smile about : Jonnier takes home the title.(Image credit: Wendy Booher/Cyclingnews.com)"S" marks the top tube of Sabrina Jonnier, super downhill racer.(Image credit: Wendy Booher/Cyclingnews.com)Rock Shox's new Vivid 5.1 rear shock : nothing beats the buttery smoothness of a coil spring.(Image credit: Wendy Booher/Cyclingnews.com)The rear derailleur housing is heavily armored to protect against damage.(Image credit: Wendy Booher/Cyclingnews.com)The Rock Shox Boxxer World Cup offers 203mm of bump-eating travel, while remaining among the lightest of its class.(Image credit: Wendy Booher/Cyclingnews.com)Jonnier's Iron Horse Sunday World Cup sports a set of well-used Avid Code brake levers.(Image credit: Wendy Booher/Cyclingnews.com)Metal to the pedal : Crank Brothers' Mallet M keeps Jonnier securely attached as she hurtles herself down the mountain.(Image credit: Wendy Booher/Cyclingnews.com)WTB provides Jonnier with its lightweight Devo saddle.(Image credit: Wendy Booher/Cyclingnews.com)There's no question as to who this Iron Horse belongs to.(Image credit: Wendy Booher/Cyclingnews.com)World Champion duo Jonnier and Iron Horse.(Image credit: Wendy Booher/Cyclingnews.com)A small piece of foam keeps debris from getting jammed behind the lower suspension link.(Image credit: Wendy Booher/Cyclingnews.com)Jonnier runs DT Swiss 440 FR hubs both front and rear.(Image credit: Wendy Booher/Cyclingnews.com)The Rock Shox Boxxer is one of the most popular choices on the World Cup circuit.(Image credit: Wendy Booher/Cyclingnews.com)Pro bikes, September 9, 2007Sabrina Jonnier's Team Iron Horse/Monster Energy Iron Horse Sunday World CupGet The Leadout NewsletterThe latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors Wendy BooherSocial Links Navigation LatestThe legend of the disappearing trophy - Why this melting award is one of the most coveted in off-road racing'I can't wait' - Jonathan Milan eyes first yellow jersey at Tour de France debut with refined sprint and 1960-watt peakLeaked photos of SRAM Force AXS groupset suggests inclusion of Hammerhead computer with purchaseSee more latest ► Most Popular'At one point or another, it's never easy to be suffering on everybody's wheels' – Simon Yates reveals why his Visma-Lease a Bike transfer could radically boost his careerTeam Solution Tech - Vini Fantini partners with Chinese carbon wheel brand for 2025A modest star: Grand Tour climbing genius Sepp Kuss on why staying under the radar works best for himOlympic medals, rainbow jerseys and a 104-tooth chainring: Inside the engineering legend of Royce'It's not crazy to aim for the World Championship stripes' – Brodie Chapman picks up Australia’s time trial baton'It's hard to grow if you're not a superstar' - Why Finn Fisher-Black left UAE Emirates, the best team in the worldTour Down Under 2025 start listHow Neve Bradbury went from teenage Zwift Academy winner to 'world-class' climber in just four seasons'We were always limited before, now the potential is massive' – Ralph Denk on a new ceiling and choosing Red Bull over the Middle East10 riders to watch at the 2025 Australian Road National Championships in PerthPro cyclists want gear restrictions to slow down races, here's why the tech experts don't think it will make the peloton safer