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Double or triple..?(13 posts)

Double or triple..?markmark
Aug 5, 2002 9:08 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 on the steeper 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
re: Double or triple..?MP
Aug 5, 2002 9:24 AM
Use whatever works for you. Don't get hung up in the rants about triples are for wimps. Remember, a typical double chainring has a 39 tooth small gear, not 36 like your cyclo setup. Don't spend money switching your triple for a double. That will leave you some cash for other upgrades, like light wheels.
Depends on where you plan to ride,
Aug 5, 2002 9:26 AM
I have an Ultegra triple and usually regret getting it for the following reasons: (1) the 42 can be toughg on some climbs and the 30 is too easy; (2) the shifting on the front sometimes gets screwed up. HOWEVER, I really appreciated my triple when I was riding in the mountains (hills?) of Southwestern Virigina in May and in the Alps last month. My goal/solution: to get a double on my next bike and keep my current bike for the occasional times when I am riding steep hills. There are lots of posts on this board regarding triples versus doubles. If you search, will find a lot of comments in the archive.
Aug 5, 2002 9:53 AM
I will probably keep the triple, but might switch the 42 to a 39. The shifting does stink though...chain drop on the bottom bracket is going to chip the paint!! I ride in western nc/va mtns too so I can probably use it more than I like to admit.
what do you have in rear?cyclopathic
Aug 5, 2002 10:01 AM
most triple bikes come with 12-25, I'd guess that's what you have. if you look at gear ratios they're similar

Middle ring:
42/23 --> 39/21
42/25 --> 39/23
42/27 --> 39/25

30/21 --> 39/26

Try to change you shifting pattern, shifting front into granny and 2 down rear should give you next easier gear.

with respect to doubles vs triples doubles have own problem you loose going from big to small. 52 to 42 is much smoother IMHO
what do you have in rear?markmark
Aug 5, 2002 11:21 AM
12-26 cassette. yeah...52 to 42 is nice, and good points made with the ratios, thanks!!
what about single?phlegm
Aug 5, 2002 10:28 AM
Put a mountain casette on the back (11-32) and then run whatever works for you upfront.
Double or triple? wrong question, look further backLone Gunman
Aug 5, 2002 11:05 AM
The easy and cheaper route is to get a different cassette. You keep the triple and get a tighter range of gears. Chances are if you got a triple it came with a 12-25. Maybe try a 11-23 or 12-21. Just because that 30 ring is there doesn't mean you must use it.
Also could be wrong about this butLone Gunman
Aug 5, 2002 11:14 AM
If you have Ultegra, no 39 exists and not sure if a 39T DA will work. That middle ring has ramps and pins that assist shifting, can't just slap on any ring. Also, your FD is out of adjustment if you are dropping your chain at all. There is a product called third eye chain watcher that attaches to the seat tube and acts as a "thumb" to prevent your chain from dropping, but again I have had a triple for 3 years now and have dropped my chain once that I can remember.
third eye really workstarwheel
Aug 5, 2002 12:13 PM
I have a Third Eye Chain Watcher on my Ultegra bike and it really works. Before I installed it, my bike would occasionally throw the chain when shifting from the large to small chainring. The front derailleur was supposed adjusted correctly, according to my LBS, but it still happened from time to time. It's never happened again since installing the chain watcher.
you need to fiddle with FDcyclopathic
Aug 5, 2002 12:22 PM
and guys in LBS usually don't have time/desire to.
The diff btw dropping chain and not shifting from middle/largest cog to granny was about 1 turn on low as I recall. Got about 1500mi since then still ok.
yup...pain to adjustColnagoFE
Aug 5, 2002 2:09 PM
but then again once you do you shouldnt need a "chain watcher" though for MTB or cross they might be a good idea.
good point!markmark
Aug 5, 2002 11:30 AM
12-26 cassette. i will use it in the mtns, the 30 ring that is. just don't need it on the local roads.