|double or triple ???||markmark|
Aug 5, 2002 8:52 AM
|Need some experienced advice. Have only been road riding 2 years now. Just bought a new bike that came with a triple(52/42/30) Had been riding a double (48/36)..cyclo-cross setup..if you are wondering.
Problem is i can't turn the new bike w/42 ring in the mountain grades around here. (The 36 ring had been no problem.)
Anybody have or had this problem? Should I humble myself and keep the triple? I liked the 42 on the less steeper grades, but not the steeper stuff, had to spin, spin, spin that 30!! Your opinions...
|Absolutely the best thing I've done in 30+ years of cycling...||cory|
Aug 5, 2002 9:16 AM
|...was to set my Atlantis up with a 46-36-26 triple.
If you're Lance, you don't need the triple. But after years of riding the standard 52-42 x 12-26 or so, and more years of the even less useful 53-tooth ring, and then that silly 30-tooth "granny" Shimano insists on, I followed Rivendell's advice on gearing my new bike.
It's made a huge difference. I have more usable gears (I don't know that I was EVER in the 53-11 on my Allez), I shift the front much less often because I can stay in the big ring longer, and I still have a 113-inch high gear, which is all I'll ever need.
Of course there is the vanity issue...but look around you and count how many cyclists you see who use the top two-thirds of their "standard" gearing. Everybody's riding around on the big side of the cassette.
|re: double or triple ???||rtyszko|
Aug 5, 2002 9:38 AM
|Hey, remember that you can play with the cassette set up out back too (within reason) I changed my Shimano triple to a 53-42-30 up front so that I could power some of the downhills (in the 53) and I run a 12-28 mtn. cassette out back for most really hilly rides. With that set up, I've found that I can do a lot with the 42 ring and the 24-28 out back so I rarely need to go to the granny 30 up front. I keep it because of one climb. The Mt. Washington Road race here in NH (7.6 miles avg 12% grade). To sum up, keep the triple, play with a few casstte options on the rear wheel. One word of caution. Make sure that the rear derailleur cage length is long enough to support the bigger cassetts out back, especially when you're in the "big-big" combo (big ring up front, big ring out back).
Aug 5, 2002 12:22 PM
|I agree with the previous responders. My main complaint about Shimano is that they downsized the rear sprockets with 12T and 11T small cogs, but forgot to downsize the chainrings. My new bike had 53/42 rings and a 23/11 9 speed cassette. Way over geared with a high of 130 inches and a low of 49 inches. Many gears were duplicated too.
I "fixed" this bike's gearing by replacing the cassette with a 25/13 for a high of 110 and a low of 45. I have more useable middle gears and a lower low for steep grades.
Another bike (commuter hack) had 52/42 rings and a 24/13 7 speed cassette. I lowered this bikes gearing with 50/38 Sugino rings, since commuting involves heavier loads and stop and go traffic.
We need to know your rear cassette size if you want a full gearing recommendation.