O.Symetric “Harmonic” Chainrings

“Those chainrings are called Harmonic, and they offer a larger gear ratio when the crank is horizontal than when it is vertical (the opposite of Biopace). I asked Bobby Julich about them, and he referred me to the company’s website. And lest you think they are a revival of the old Biopace design, Julich says “they are the furthest thing from what Shimano had!”” Velonews Techtalk

They still didn’t help Vinokourov as Mick Rogers takes Gold in Verona for the 2004 UCI World Road TT champs: First Edition Cycling News for September 30, 2004

SuzyJ points out that these have been around for ages, see also:

EGGrings

Ya, thanks guys, good ride!

Cherios for the brief chat to the dude on the Moulton(?) before the start of the ride. I want a Birdy or BikeFriday? Do they fit in a Crumpler? 🙂

I really need to pay more attention to the map and where those sprint points are. People would fly by and be 100m down the road and I’d be left going “Oh, guess that was a sprint” 😉

As soon as I hit Whitehorse Rd. the sky started leaking but for the duration of BR14.. no rain! 🙂

Was passed by over 20 Porches (well, they WERE Porches! ;-)) that must have been out for a club drive or something. Some of them were convertibles!

Rain + Car – Roof = Oops! 🙂

Duration 3:43:50

Energy Expenditure 2862 kcal

Number of Heart Beats 32020 beats

Minimum Heart Rate 95 bpm

Average Heart Rate 143 bpm

Maximum Heart Rate 194 bpm

Minimum Speed 1.5 km/h

Average Speed 24.6 km/h

Maximum Speed 87.6 km/h

Distance 85.4 km

Minimum Cadence 17 rpm

Average Cadence 87 rpm

Maximum Cadence 164 rpm

Map: