Bicycle Mechanics - Road/MTB component compatability

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jbrians
12-08-06, 04:56 AM
I am building a new commuter up from the parts bin on a KONA MTB frame. I have a complete Deore DX 8sp drivetrain that I would like to use. The crank I have is a Truvativ 53-39 from a roadie that is now a leftover since I converted to a compact.
Are there issues with getting the Deore left shifter to work on a double road crank?
The shifters are integrated with the brake levers and I was planning on changing to V brakes from the canti setup the bike came with. My guess is that won't work right without a lever change as well? I plan on staying with flat bars.
btw...the rear wheel going into this is the first wheel build that I've ever tried! 3X driveside and 2X left side. It's a thing of beauty.
Sheldon Brown
12-08-06, 09:23 AM
I am building a new commuter up from the parts bin on a KONA MTB frame. I have a complete Deore DX 8sp drivetrain that I would like to use. The crank I have is a Truvativ 53-39 from a roadie that is now a leftover since I converted to a compact.
Are there issues with getting the Deore left shifter to work on a double road crank?
The shifter should work fine--doubles are WAY less fussy than triples.
You may have clearance issues trying to put such large chainrings on a MTB frame. Might need to use an extra long bottom bracket and settle for strange chainline.
btw...the rear wheel going into this is the first wheel build that I've ever tried! 3X driveside and 2X left side. It's a thing of beauty.
Sounds like a lot of trouble...what's the point?
Sheldon "http://sheldonbrown.com/speeds" Brown
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| The thing about the cold is that you can never tell how cold |
| it is from looking out a kitchen window. You have to dress |
| up, get out training and when you come back, you then know |
| how cold it is. -Sean Kelly |
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jbrians
12-08-06, 02:18 PM
The shifter should work fine--doubles are WAY less fussy than triples.
You may have clearance issues trying to put such large chainrings on a MTB frame. Might need to use an extra long bottom bracket and settle for strange chainline.
Sounds like a lot of trouble...what's the point?
Sheldon "http://sheldonbrown.com/speeds" Brown
+----------------------------------------------------------------+
| The thing about the cold is that you can never tell how cold |
| it is from looking out a kitchen window. You have to dress |
| up, get out training and when you come back, you then know |
| how cold it is. -Sean Kelly |
+----------------------------------------------------------------+
The point about the wheel build, was the spokes on the nondrive side where too short when I spoked it up in a 3X so I took a cross out and now they work fine.
I'll check that chainline before I order the BB. If necessary I can put in a triple and take the small one off.
Thank you for the reply!
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