crankset

[wheelz]

Might be a stupid question, but anyways

 

why cant you use a road crankset on a mtb?? the crank lengths are the same, just the chainring sizers differ, but surley you can get a chainring in whatever mtb size you want,eg 44-32

[Ox_Wagon]

Different Bolting circle.

[Speedi]

Well iv got a road crank if you want it make an offer and we can talk...

 

 

 

And ya you can use a road crank on a MTB

 

 

 

Check this outSpeedi2008-09-04 12:36:36

[TokenFreak]

 

Well iv got a road crank if you want it make an offer and we can talk...

 

 

 

https://www.bikehub.co.za/forum_posts.asp?TID=32224

 

Speedi dude you cant go and give away my crank

 

[TNT1]

 

Different Bolting circle.

 

Yeah, but the road carnkset would fit the mtb BB? Yes? How about a compact road with a 33/50 or so? If I don't want/need a triple on my mtb?

 

[wheelz]

Different Bolting circle.

 

yes but cant you get smaller(eg 33-42) road chainrings?

 

im just thinking aloud

[Ox_Wagon]

On BB first.  It will fit if the cranks use that same BB (Square tape/octalink/isis etc)  BUT the MTB BB axel may be wider to accommodate a triple crank set which will increasing the Q-factor.<?: prefix = o ns = "urn:schemas-microsoft-com:office:office" />

The BCD determines the smallest chain ring that you can fit. To quote Http://www.sheldonbrown.com/harris/chainrings.html

Campy road  = 135 BCD = 39

Shimano road = 130 BCD = 38

Road Compact, MTB STD (old type) = 110BCD = 33

MTB Compact (on all new MTB, 4 arm) = 104 BCD = 32 (29)

There is also ?supposed? to be a small difference between the spacing of the chain rings. Shimano recommends that you use their ?special? flatbar shifter instead of normal MTB shifter.

http://cycle.shimano-eu.com/catalog/cycle/products/group.jsp?FOLDER%3C%3Efolder_id=2534374302049903&ASSORTMENT%3C%3East_id=1408474395181667&bmUID=1220548200443

 

The 2x9 MTB setup is a relatively old idea(Cannodale's coda cranks etc), but they fit a 29 instead of a 32. 29 are just very hard to find expecialy in ZA.

http://www.chainreactioncycles.com/Models.aspx?ModelID=30179

http://www.chainreactioncycles.com/Kits.aspx?ModelID=3345

Ox_Wagon2008-09-04 11:12:28

[Ox_Wagon]

I have an old XT, 5 arm,  110 BCD crank that has a 46/38/24 on it. 

 

They came out standard with 46/36/24 . 

 

I am considering removing the granny and replacing the chainring and then using it as a road crankset.

Ox_Wagon2008-09-04 11:02:49

[Ox_Wagon]

There is more?..<?: prefix = o ns = "urn:schemas-microsoft-com:office:office" />

 

MTB chain stays widens faster and more to accommodate the larger tire so you will have to check if there is space to install a larger chain ring (clearance problems).  

 

As far as I c<?: prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />an remember it was one of the big reasons that everybody moved to the current Compact MTB cranks.

 

Where is all that guys that say only girls ride compacts, they should explain the compact cranks on their MTBs.

 

[NotSoBigBen]

 

Where is all that guys that say only girls ride compacts' date=' they should explain the compact cranks on their MTBs.

 

[/quote']

 

You called Sir

[Speedi]

Just remember my crank

 

 

 

Bargain deal!!Speedi2008-09-04 12:37:44

[TokenFreak]

 

Just remember my crank

 

 

 

Bargain deal!!

 

My crank you meant to say speedi

 

[aapjas]

WOW 301.50 is a bargain Token Freak

[TokenFreak]

 

 

WOW 301.50 is a bargain Token Freak

 

LOL we can always bid against each other on it aapjas just to help the guy out Actually all im trying to do but i guess im stepping on his toes

TokenFreak2008-09-04 13:19:12