Wolf tooth
11-03-18 | 01:50 AM
#1
Thread Starter
Member
Joined: Aug 2018
Posts: 45
Likes: 0
Wolf tooth
hey guys,
will I be able to use a tiagra road bike crank on a mtb frame.
Trying to go1x10 drivetrain with a 42 T wolf tooth chainring.
Any suggestions? by the way it's a late 90's gt with 26 inch wheels turning it into a commuter
thanks
will I be able to use a tiagra road bike crank on a mtb frame.
Trying to go1x10 drivetrain with a 42 T wolf tooth chainring.
Any suggestions? by the way it's a late 90's gt with 26 inch wheels turning it into a commuter
thanks
11-03-18 | 06:07 AM
#2
Senior Member
Joined: Jan 2013
Posts: 2,392
Likes: 959
From: South Jersey
Probably not. Most MTB frames have 73mm bottom bracket shells and road crank spindles are only long enough to work with a 68mm bottom bracket shell. Even if your frame has a 68mm shell, the narrower crank arms may not clear the wider chainstays on the MTB frame.
11-03-18 | 07:56 AM
#3
Senior Member
Joined: Feb 2012
Posts: 19,373
Likes: 5,516
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Do we know which version of Tiagra crank the OP is talking about? If it's an older tapered square version then there's no reason why with the proper BB the crank won't fit. However dsaul is correct in the good possibility that the chainline might be less then ideal. Besides the chain noise that the great chain run angles might result in the chance of derailing off the front even with a 1x specific ring is there. At worst one can use the ft der as a chain guide. But then you're part way back to a 2x system.
I still don't see the fascination with 1x systems. You loose either ratio range of have huge gaps between the ratios, you end yo using darn near no no cross over type chain angles, You often need a specific (less cheap) ring and maybe a chain guide too. All this to not have the few extra ounces of a 2x system? And some of that weight savings is given back with the huge rear cogs... OH well, if 1x keeps people from dropping their riding so be it. Andy
I still don't see the fascination with 1x systems. You loose either ratio range of have huge gaps between the ratios, you end yo using darn near no no cross over type chain angles, You often need a specific (less cheap) ring and maybe a chain guide too. All this to not have the few extra ounces of a 2x system? And some of that weight savings is given back with the huge rear cogs... OH well, if 1x keeps people from dropping their riding so be it. Andy
__________________
AndrewRStewart
AndrewRStewart
11-03-18 | 09:44 AM
#4
Really Old Senior Member
Joined: Feb 2007
Posts: 14,667
Likes: 1,904
From: Mid Willamette Valley, Orygun
Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3
Do we know which version of Tiagra crank the OP is talking about? If it's an older tapered square version then there's no reason why with the proper BB the crank won't fit. However dsaul is correct in the good possibility that the chainline might be less then ideal. Besides the chain noise that the great chain run angles might result in the chance of derailing off the front even with a 1x specific ring is there. At worst one can use the ft der as a chain guide. But then you're part way back to a 2x system.
I still don't see the fascination with 1x systems. You loose either ratio range of have huge gaps between the ratios, you end yo using darn near no no cross over type chain angles, You often need a specific (less cheap) ring and maybe a chain guide too. All this to not have the few extra ounces of a 2x system? And some of that weight savings is given back with the huge rear cogs... OH well, if 1x keeps people from dropping their riding so be it. Andy
I still don't see the fascination with 1x systems. You loose either ratio range of have huge gaps between the ratios, you end yo using darn near no no cross over type chain angles, You often need a specific (less cheap) ring and maybe a chain guide too. All this to not have the few extra ounces of a 2x system? And some of that weight savings is given back with the huge rear cogs... OH well, if 1x keeps people from dropping their riding so be it. Andy
I feel plenty smug with my 3X9's.I don't know what gear ratios a 1X11 has that I don't? + I have all those extra gears in between.
11-03-18 | 09:48 AM
#5
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
11-03-18 | 10:55 AM
#7
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
IGH commuter is my choice
Shimano Alfine 11 speed IGH,
If you want, can even get a Di2 Electronic shifter kit for it.
Hebie Chainglider , a light weight chain case to keep the chain cleaner..
Also,
Sturmey archer makes Drum brake hubs,
they are one less thing to worry about,
(drum brake shoes last for generations)
all weather brakes to retro fit on rim brake frames..
they combine them with a hub dynamo front,
and several internal gear rear hubs..
and cassette and freewheel external gears.
...
If you want, can even get a Di2 Electronic shifter kit for it.
Hebie Chainglider , a light weight chain case to keep the chain cleaner..
Also,
Sturmey archer makes Drum brake hubs,
they are one less thing to worry about,
(drum brake shoes last for generations)
all weather brakes to retro fit on rim brake frames..
they combine them with a hub dynamo front,
and several internal gear rear hubs..
and cassette and freewheel external gears.
...
Last edited by fietsbob; 11-03-18 at 11:04 AM.
