Thanks for the thoughtful review.
The whole riding experience is greater than the sum of the performance figures of course but there isn't that much objective difference in performance figures when comparing the MCN review of the 2003 ST and the 2014 RT. The wet weight difference is 85 lbs full tank to full tank, the difference in 60 to zero braking distance is 1 foot, the 1/4 mile and 0 to 100 mph figures are about 1/10 and 1 second different respectively. Subjectively the riding experience is entirely different of course. 12 years forward does make a difference.
Here are links to MCN's published reviews for the '03 ST (
story and
stat chart) and
'14 RT.
Their tests have the ST...
Faster by 5 mph
Slower 0-60 by .16 sec
Slower in 1/4 mile by .3 sec and 4 mph,
Slower 0-100 by .9 sec
Longer 60-0 by a foot
Higher torque by 0.4 lb-ft
Less hp by 6.7 ponies
Heavier (wet) by 107 lbs (ST 727, RT 620)
Those figures are pretty close, certainly within the margin of error of rider skill if the two bikes were at a drag strip. But there is an outlier:
weight. As I mentioned earlier, published weights for these bikes are all over the map, but MCN actually weighs bikes "as tested" so I think we can trust their figures bike to bike. I'd wager the 604 lbs BMW lists for the RT on its website is for the unobtanium base model. Mine has every option package (it's equipped like MCN's test RT) so I'm not surprised it gained 16 lbs. Even still, it's over 100 pounds lighter than the ST, as tested. FWIW, the two bikes MCN tested are the same years as my ST and RT and factory equipped as my ST and RT are.
As Dave points out, the subjective riding experience is a different animal. I've ridden both bikes back-to-back and my seat-of-the-pants meter gives the RT a decided advantage, no contest. Perhaps it's amplified because the RT goes about its business feeling much lighter on its feet. The RT's superior power to weight ratio (ST 1:6.85, RT 1:5.50) may be the most telling stat of all...sort of like dancing with two ladies with similar skills, but one weighs substantially less.