Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-15-08, 04:55 AM   #1
sethno1ram
Newbie
Thread Starter
 
Join Date: Jun 2008
Bikes:
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
triple chainset or compact?

i have been thinking of putting on a triple chainset for my road bike but have been told that sticking and having a compact would be better. any advice? many thanks
sethno1ram is offline   Reply With Quote
Old 06-15-08, 07:09 AM   #2
Retro Grouch 
Senior Member
 
Retro Grouch's Avatar
 
Join Date: Feb 2004
Location: St Peters, Missouri
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Posts: 26,904
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 206 Post(s)
The nice thing about a compact crankset is you can get lower gears without having to buy anything but the crankset. A triple will give you a wider array of gears but, to make it look like a factory installation, you also need to replace the bottom bracket, both derailleurs, and sometimes the shifter.

The downside to a compact double is it's lack of overlap gears. It pretty much mandates when you have to shift chainrings and each front shift may also require one or two rear shifts. If you find yourself making front shifts a lot on relatively flat roads, it's a PITA.

In the interest of full disclosure, My Klein road bike didn't have the low gears that I need for many of the hills in my area. I tried unsuccessfully for a year or so to find somebody locally who had an Ultegra triple but wanted a double crankset. A couple of years ago I installed an FSA Energy compact and immediately loved it. I think that it's the best equipment change that I've ever made.
Retro Grouch is offline   Reply With Quote
Old 06-15-08, 10:36 AM   #3
LtSPD2000
Senior Member
 
LtSPD2000's Avatar
 
Join Date: Mar 2007
Location: Monroe, La.
Bikes:
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have been contemplating the same thing. I have a 08 Trek Madone and am not that satisfied with the Compact set up. I came from a D/A triple which I really loved. I have had this bike since August and have moved to San Antonio and the hill country poses some challende to the compact. The only problem is the amount of equipment i will have to replace.
Crank
Bottom Bracket....maybe. I have to check with Trek since this bike has integrated Bearings
Cassette- I have a 12-27 and like a 12-25 with a triple
Front derailleur
Shifters- 10speed Ultegra are either Double or triple specific.
Its easier to go from a Triple to a double.

I like the 39/53 chainrings on a triple and use the 30 for a bail out gear. I rarely have used the 30 but it is nice to have and beats walking......

I may Ebay all this stuff and make the switch myself......
LtSPD2000 is offline   Reply With Quote
Old 06-15-08, 11:58 AM   #4
JiveTurkey
Low car diet
 
JiveTurkey's Avatar
 
Join Date: Aug 2007
Location: Corvallis, OR, USA
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Posts: 2,407
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
http://sheldonbrown.com/gears/

Plug in your current set-up and possible new set-ups and see how they all compare. I suggest using "MPH/KPH @ [a given] RPM." It's the most intuitive measurement, for me at least.
JiveTurkey is offline   Reply With Quote
Old 06-15-08, 01:42 PM   #5
DMF 
Elitist Troglodyte
 
DMF's Avatar
 
Join Date: Jun 2006
Location: Dallas
Bikes: 03 Raleigh Professional (steel)
Posts: 6,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
A compact doesn't do anything well.

At best it's a compromise for weight weenies that can't climb.
__________________
Stupidity got us into this mess - why can't it get us out?

- Will Rogers
DMF is offline   Reply With Quote
Old 06-17-08, 08:23 PM   #6
Deanster04
Senior Member
 
Deanster04's Avatar
 
Join Date: Dec 2005
Location: Boulder, Colorado
Bikes: Cinelli Supercoursa 69, Ritchey Breakaway Cross, Mondonico Diamond Extra 05, Coors Light Greg Lemond (built by Scapin) 88, Scapin MTB, Stumpjumper 83, Specialized Stumpjumper M4, Lemond Poprad 2001
Posts: 1,366
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by DMF View Post
A compact doesn't do anything well.

At best it's a compromise for weight weenies that can't climb.
Alberto Contador used one in the Giro and won the stage! That said I couldn't agree more. I am going to do the Ride VA next week with a compact double on a borrowed bike. I rode it today after setting it up last night and it was ok...the triple is really a more natural way of riding. I found that my 60 mile ride today I was having to think a lot about the shift positions I was in. Also, I found that I couldn't find the best gear riding with the group I was with. I was either spinning too much or grinding but not in my natural cadance. I ride both a standard double 39/53 or a triple 30/40/50 and find I ride the triple like a double but do have the gears available for riding the Colorado passes as well.
I will see just how it will work on the ride.
The compact double is an ultratorque Campy...now that is a nice setup. Oh you need a Compact specific FD...I am using a double for the next couple of days but, it was a bear to setup and I don't want to worry about shifting the front and rear Der ofter to get the best gear combo.
Deanster04 is offline   Reply With Quote
Old 06-18-08, 08:45 AM   #7
DMF 
Elitist Troglodyte
 
DMF's Avatar
 
Join Date: Jun 2006
Location: Dallas
Bikes: 03 Raleigh Professional (steel)
Posts: 6,924
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
And many are used on Brasstown Bald. I paid attention this year because of rumors that some were riding triples (I didn't see any but I only looked among the trailing groups; if there were any they did well).

But pro setups are specific to the route (in the cited cases near-vertical routes) and the rider. My little dictum above (shall we call it DMF's Law?) applies to the non-professional - someone to whom 100g makes no practical difference, whatever their opinion on the matter.

Let me add
__________________________________________________________

DMF's First Corollary to DMF's Law: If you "never use" the granny, don't switch to a compact. Switch to a smaller/closer cassette.
__________________________________________________________

Last edited by DMF; 06-18-08 at 08:51 AM.
DMF is offline   Reply With Quote
Old 06-18-08, 08:58 AM   #8
merlin55
Senior Member
 
Join Date: May 2008
Location: SoCal
Bikes:
Posts: 1,246
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My new bike has a 34/50 FSA crank, my old bike a 53/39 Dura Ace. I ride the new bike most of the time, and like the lower gears for climbing, and also that the jump between each gear is slightly less, than when riding the 53/39.....

Compact cranks shift well with a DA 10 speed front derauiller, but not so well with a DA 9 speed front derauiller
merlin55 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 05:53 AM.