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Old 09-07-11, 02:24 PM   #1
malaby
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Touring bikes with front Doubles

Hi - I am looking for a bike with all the characteristics of a decent touring bike but with a double chainring in the front. Does someone make a bike like that?
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Old 09-07-11, 02:35 PM   #2
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Salsa Vaya fits the bill:

http://salsacycles.com/bikes/vaya/

I test rode one last year, it seems like a great bike.
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Old 09-07-11, 02:38 PM   #3
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I don't know of a specific bike that comes like that but it is easy enough to change the crank. I would look for a bike that comes stock with a mtb rd and cassette as you will probably want that if you plan to use a compact in lieu of a triple.
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Old 09-07-11, 02:53 PM   #4
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Originally Posted by shelbyfv View Post
I don't know of a specific bike that comes like that but it is easy enough to change the crank. I would look for a bike that comes stock with a mtb rd and cassette as you will probably want that if you plan to use a compact in lieu of a triple.
+1

If I bought my LHT as a complete bike, it would have come with a triple up front, but I built it from parts and a double suited my needs much better. I think there are good reasons why triples are used in terms of gear steps and shifting patterns, so you might not find a stock touring bike with a double, but it's not a difficult change to make.
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Old 09-07-11, 03:19 PM   #5
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Take the outer ring off and put on a bash guard,instant double crank.
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Old 09-07-11, 03:27 PM   #6
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Take the outer ring off and put on a bash guard,instant double crank.
+1 on this!
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Old 09-07-11, 04:02 PM   #7
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Hi - I am looking for a bike with all the characteristics of a decent touring bike but with a double chainring in the front. Does someone make a bike like that?
No, but conveniently enough nearly every decent touring bike has a triple and like Booger! said "Take the outer ring off and put on a bash guard,instant double crank."

Which is what I did for my Cross-Check and LHT but eventually changed the LHT back to a triple with a relatively close range 12-28 8spd cassette.

The CrossCheck has a 74/110 BCD triple with the outer ring taken up by a Salsa chain guard. Middle ring is a 44t with a 30tooth on the 74BCD inner ring position. With that I can use every cog on the cassette as it's the middle ring and the inner is a low gear. If I want a lower range than the 30chainring I can put a lower chainring on and a wider cassette. 44/30 w. 12-28 8spd gives a 29"-99" range. If I drop the inner to 28t and the cassette to a 12-32 I get 24"-99" range.
For touring I could see a 9 cassette giving all the gears you'd ever need w. 26/44 chainring and 12-32 cassette for a 22"-100" range
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Old 09-07-11, 06:15 PM   #8
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My thoughts on gearing. The "recommended" range for loaded touring is 20 to 100 gear inches. How you get that is up to you. You can use a triple with a cassette that has fewer big jumps between gears, or a double and a really wide mt. cassette. Your call as to your own needs. I like smaller gaps between shifts in the rear, saves the knees when on day 3 of a headwind across the prairie. Thus I use a triple and a tighter cassette.

Taking the small ring off a triple make no sense as it's usually the large ring you don't need. This is very dependent on what crank your using. If it's a typical 105 or Ultegra triple, it might have a 30/39/52. In that case I'd rather have the 30 then the 52 and would swap my cassette to start at 11 or so to get that 100 inch high. I also swap the 30 for a 24 or 26 (the 26 works better) to go low, but again, your call.

The typical road compact uses 110bcd rings and usually has a 34 small and a 50 large ring(s). With the widest range Shimano cassette you get a 34 large cog. That's a 27 gear inch low and may not be low enough. So do you swap the 34 small ring to get the low gearing or stay with a triple ?.

Triple.

SB
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Old 09-07-11, 09:39 PM   #9
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Does someone make a bike like that?
No, You have to do that , yourself, rather uncommon components ,
for a mass produced rig. you have to swap components.

A touring companion in 1986 had a TA cyclotourist double a 50/28 combination.

collectors stuff, now.. the crank-arms sell for $200+, now.. minus chainrings
but replacement chainrings are sill made.

On my Brompton I have a double chainring , but the granny gear is a planetary .

as if a 50t, 20t.. , but can be shifted at low or no momentum..
Schlumpf Mountain drive crank , turned my 3 spee into a 6 speed using it 's
gear ratio's twice, once again in low range.

Last edited by fietsbob; 09-07-11 at 09:43 PM.
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Old 09-08-11, 03:22 AM   #10
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No, You have to do that , yourself, rather uncommon components ,
for a mass produced rig. you have to swap components.
.
The Salsa Vaya comes with a 50/34 compact double. Not really uncommon....
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Old 09-08-11, 10:23 AM   #11
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Most 'cross bikes have doubles, and many are pretty close to same manufacturer's touring bike geometry. So, for whatever touring bike you like, see what their cyclocross bike has.
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