Cycle News

Cycle News 2013 Issue 49 December 10 2013

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

Issue link: https://magazine.cyclenews.com/i/225297

Contents of this Issue

Navigation

Page 76 of 101

TEST P78 SOUTH BAY TRIUMPH STREET TRACKER choke on an 80-degree SoCal summer day but instead blip the throttle a couple of times to prime the big Keihin FCR flatslides, thumb the starter button, and get ready for the Triumph to thunder into life and settle to a pretty lumpy 900 rpm idle. But then crisply snick it into gear via the so-precise shifter, and get ready for a surprise, because the motor smoothes right out as the revs mount. Capri's got the balance factor just right on the stroker crank, for vibration remains minimal even when you wind the throttle wide open in pursuit of the 8500 rpm rev-limiter, accompanied by the trademark flat angry drone of a traditional tuned British twin - as expressed through the twin megaphone exhausts. That stroker crank seems unbelievably free spinning, with a perfectly dialed in throttle pickup that's immediate but not jerky, as flat-slide carbs can sometimes be. Fueling wasn't totally ideal low down, and it would hiccup slightly and display some transmission snatch if I accelerated hard below 3500 rpm – perhaps the carb jetting still needed attention. But that's the threshold to serious performance, for the Triumph motor's mega midrange torque delivers truly impressive acceleration, as the front wheel lightens in either of the bottom two gears while the tach readout on the ultra nifty British-made Acewell digital dash scoots up to the 7500 rpm mark and beyond with unmistakeable purpose. What grabs you first, last and always about the Street Tracker is the effortless grunt of that rorty motor, which makes short-shifting around 6500 rpm in each gear the hot tip. You need only use the clutch shifting up out of first gear, but otherwise this crisp, precise gearshift is the fastest and cleanest I can ever remember on a Triumph Bonneville. The power curve is totally linear, and acceleration punchy and satisfying, as the Bonnie's front wheel first lifts lazily, then hovers above the pavement hard on the gas at any of the stoplight GP races you can't help but turn any red light into. Those flat-slide carbs give instant throttle response either off the line or exiting a turn, but there's a crisp, responsive crack to any midrange roll-on that's addictive and thrilling, especially to the background music of those growling exhausts. This is a real 21st-century classic hotrod. Though short shifting just seems right in terms of maxing out drive, the motor has an appetite for revs up to around the 8000-rpm mark. Low-down

Articles in this issue

Archives of this issue

view archives of Cycle News - Cycle News 2013 Issue 49 December 10 2013