Peddlin' Around Detroit
Join Date: Dec 2006
Location: Livonia, MI
Bikes: Legend, Saluki, Trek 730
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Chainring Settings for 650b Wheel Tours
Trying to flip a coin on the preferred chainring group for my 50 cm Rivendell Saluki. I'm 5'3", my PBH is a smidgen under 76 cm, and my SH is 64.5 cm.
The bike is a bit on the heavy side, lugged steel frame, and it may wind up with more weight: fenders, a small rack, and small bag on rack for metropark whatnots, and for possible credit card tours.
The majority of bike riding on this bike would be on pavement in metroparks. When doing club rides in the metropark, there are some segments where I would need to have a 15 MPH pace. But on the average, I suppose a 30 mile club ride in the metropark will have an average between 12 & 14 MPH. I've only ridden in one metropark, so I can not really mention whether or not metroparks in Michigan will typically have any significant inclines.
I did a 25 mile club ride Sunday on my Trek 730 (see avatar below), which has an 11-28 cassette with 170 mm - 42/34/24. These were comfortable gears, but it was a strain to keep a sustained speed of 14 MPH. I should add I was only doing about a 65-70 RPM cadence, until I get the engine tuned up to an eventual 80 RPM cadence.
The Saluki will be on 650B x 33mm Maxy Fasty tires, the rear cassette will be Ultegra 12-27 (9 speed), and the following crank options are all Sugino XD2 cranks:
* 165 mm - 46/36/24
* 170 mm - 46/36/24
* 170 mm - 48/36/26
Any advice on selection (and reasoning on selection) of crank and chainrings, based on the bike ... bike weight ... bike accessories ... 650b wheels ... 50-year age ... and the riding style I described?