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double vs. triple(10 posts)

double vs. triplememphistrials
Aug 15, 2002 7:34 PM
So, I've got my fairly new CrossCheck sitting here, with some generic cranks with two chainrings. And I've also got a new Sugino crankset w/ three rings sitting here...

What do most people run, double or triple? Would the smaller big ring (a 44) be a huge loss compared to the big ring on the double cranks (a 48)? I don't plan to race much, and my racing won't be serious...

Lastly, can the Shimano Tiagra be set up for a triple crankset?

Thanks for any help!
re: double vs. tripleatpjunkie
Aug 15, 2002 8:07 PM
I assume when you say Tiagra you are referring to the shifters. Most Shimano Shifters come in either double or triple so if your bike came with double crankset you probably have double shifters.
Most hardcore crossers run double or single up front and will look down upon those with a triple. The attitude is "if it's that steep you probably should be running." but some of them will accept a granny ring on a cross/adventure-epic bike. Stick to a double unless you plan on doing some MTB rides on your cx bike. You won't get those stares at the races you do. Run a 48/36 and you should be fine especially combined with a 12-27 or so. You may want to upgrade the crank though.
re: double vs. triplememphistrials
Aug 15, 2002 8:24 PM
Actually, I was referring to the front der. It's Tiagra. The shifters on the bike are Shimano 9 speed barcons.

So are the 9 speed barcons triple compatible?

As far as what other folks think, I'm not too worried about that... Like I said, I won't be racing much at all, and it will be a all-around bike for me... Road, trails, paths...

Thanks again!
front derailleurs have different models for double and tripleweiwentg
Aug 16, 2002 1:18 AM
although for the record, Tiagra thru Ultegra have no differentiation in their STI levers between doubles and triples.
re: double vs. triplewspokes
Aug 16, 2002 3:41 AM
I run triples on all of my crossers. I haven't gotten too many stares at any of the regional races. Then again, they can't get close enough to see what I run until I lap them...haha. seriously though. If you don't intend on racing, and you want to use this bike for some other terrain like the occasional wandering off road on light trails or some hard steep pitches. What's it going to hurt tossing on the triple. I rarely use mine unless mountain biking with it. I use a RSX micro road crank, I put a 48t, and I honestly don't even remember the other gearings 36? and who knows granny?..other than an 8speed 12-28 in the back. The rule of thumb in racing which steers many toward doubles is this, if it is slow enough up the hill to use the granny, it is better to run the section. If you go with a mountain bike front derailleur, you can run a double or a triple with bar ends. That's the beauty of bar ends. flexibility. I am currently running an old campy road derailleur on the front of my surly, triple crank with the bar ends and no problem. Good Luck.
re: double vs. tripleEager Beagle
Aug 16, 2002 12:40 AM
I run campy racing triple on my Jake (30/40/50). You don't see many racers with triple on it's true, but I find that it comes in very handy in training - sure, you can run instead of using the granny, but it's nice to keep on riding up lose/technical stuff sometimes. Also means that you can go out with your MTB chums and ride as slow as them :-)
Virtual Double for Racingtriangleforge
Aug 16, 2002 5:32 AM
I've currently got a Suntour triple on my 'cross bike, which comes in really handy for training -- I live at the top of a steep, relatively long hill, and it's nice to be able to cool down a bit when I'm returning home, despite the grade.

For racing season, I'm either going to switch to a single with double chain guards (probably a 42), or leave the triple on and block out the granny ring for racing -- that way, I can just dump the gear lever (an old Suntour Bar-con) back and forth between the 36 & 46 without worrying about overshooting the middle ring. I also suspect that, if I lose the chain to the inside, I'll be able to pedal it back on fairly easily. I used a Third Eye chain watcher last year, and won't again -- it worked great until a crash on the last lap of my last race yanked the chain down UNDER the chain watcher, and the ensuing 40 seconds of tugging and cursing cost me a place in the race, to the guy who beat me by ONE POINT in the Virginia Cross series, dropping me to 11th place in the series!
Aug 16, 2002 1:06 PM
Probably a double only, maybe not. See what kind of action you get with the shifter. Hey Ya'll big up on the bar ends. I thought I was the last of a dying breed.
The bar cons will handle a triple, you may need a new front derailleur
re: double vs. triplegotbones
Aug 16, 2002 6:59 PM
I have a Cross Check with the Tiagra front der, XT rear der, and barcons. It handles a triple (48/36/26) without any problems. My knees like the granny gear when I'm out with my MTB buddies.
re: double vs. tripleWheelz
Aug 19, 2002 12:48 PM
I live next to the Santa Cruz Mtns, so I have some pretty good climbs available.

I run an XT drive train with a double chainring set. But I do the same on my Mtn bike as well. I find that with 9 speed gearing, I can run a 34/48 up front along with a 34/12 tooth cog set. I can't see any reason to go below 1:1 gear ratio.