upsizing SLX chainring for road use

[cyberaver]

Hi *

 

I have been slowly building up some kit for my MTB for on road use. (yes, nothing beats a road bike for road but at my size, those puny little things crumple at the sight of me, nevermind me sitting on the damn thing)

 

One of the things I have noticed is that the front chain ring at 24/32/42 is a lot smaller than road bike sets and the loss of speed is noticable on the long flat sections

 

I ride a Giant XTC1 2011 and was thiking of upsizing the chainring to a 50 something / high 30's / mid twenties combo on the front for road rides. I havent been able to find anything online. so...

 

1) Do such things actually exist for MTB sets like SLX?

2) Would something from a Shimano 105 or similar road set fit?

3) Should I rather just get a road crank for the front and fit that when riding on road? If a get a compact set triple ring crank, would the slx front derailer work for the road set?

 

Thanks in advance

[javadude]

Shimano makes a 26/36/48 combo for SLX cranks. You can get them from CRC.

 

Road chainrings wont fit on an MTB crankset. A road crankset may or may not fit on an MTB, depending on the width of the BB as well as the clearance of your chainstay.

Edited March 23, 2011 by velo

[scott]

hi there

you can get a Shimano Deore front crank set which has 48 / 36 / 26 chain rings on it . your std front derailer should work with this no problem . you ll just have to move the derailer up a little to accomadate the larger chain rings

[Caerus]

What happens when you wanna go offroad? Will it be ok still

[cyberaver]

CRC have bigger size rings for the SLX but in 9spd, mine is 10spd. is there a differance? I expect the 10spd chain wont work on the 9spd's

 

As to riding off road. I'll have to pedal harder I suppose

[gongmech]

and dont forget that with the bigger chainrings u will need a longer chain. For Argus this year used a 46,36,22 combo. worked ok but not ideal. would be interested in seeing some of these shimano combos...time to check CRC again.