I was just looking at some bikes and why do some people use road parts such as a rear derailleur and cassette on a mountain bike? Shouldnt mountain bike parts be stronger and be built for more abuse then road stuff? Please answer this mystery for me!
Why use road parts on a mountain bike?
bikemansam
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I was just looking at some bikes and why do some people use road parts such as a rear derailleur and cassette on a mountain bike? Shouldnt mountain bike parts be stronger and be built for more abuse then road stuff? Please answer this mystery for me!
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they're smaller
well road deraillers have short cages which single ring runners like, also you can get them cheaper since many consider their deraillers disposable. Road casettes offer shorter gearing which racers tend to like, and they certainly arent weaker; roadies put ALOT more torque into thei drivetrains than we do.
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True. You can run a short cage if you are not using wide range gearing and smaller than a 28t large cog on the rear. Get more ground clearance and less chain slap than with a long cage derailleurzedro said:
Not true. And XTR or Saint and Dura Ace derailleurs cost about the same. As do XT and Ultegra and all the way down the mtb/road lineup. If you want to use cheap derailleurs they are available in mtb and road models.
True. If you never need a cog larger than 27t road cassette work fine.
Not true if you do use larger than a 27t cog and a granny ring for climbing.
A DHer may not apply more torque to a drivetrain than a roadie but if you climb on your mtb offroad you certainly do.
arrrgh...never respond to me Pete style againshiggy said:
was more referring to those 505's (i think) or whatever cheapy model. The problem is cheap mountain deraillers dont come in short cage, road ones do. I believe you need to go XT to even get a medium cage....you can true or false that one later you bastard
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The only read component in my bike is a Shimano 105 rear del. this is the second one but the first one took all kind of hits and was working OK intill the last day when I replase it with another 105 .
And talking about true and false , my 105 SS cage del. go trough all the cogs of my 11-34 cassette .
And talking about true and false , my 105 SS cage del. go trough all the cogs of my 11-34 cassette .
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Not True!shiggy said:
I've run Ultegra short cage with a 34t cog, and if i remember correctly I did it without inverting the b-tension screw.
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Does depend on the hanger on your frame. I have had road derailleurs rubble the jockey pulley on the large cog. Also less likely to happen with a single chainring than with a double or triple.singletrack said:Not True!
not sure what your logic is, why would you put strain on your chainrings if you land with both feet on the cranks? Not like you are dropping off with your full weight on the forward pedal; that would really torque the drivetrain. Trials riding will destroy a drivetrain, not like you see downhillers spinning cogs straight through a King freehub bodyghj018 said:
. Yes, I know that trials bikes are always in the same gear, but you can imagine the type of torque required to snap a Shadow Halflink chain which of course has been done by trials riders.1 - 11 of 11 Posts
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