gasant112 Posted June 7, 2007 Share Hi,<?:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />I have a fairly entry level MTB..( Mongoose ) the crank seems to flex when I stand and pedal.. The chain scraps against the front derailleur... I know on the Dure Ace group set ( Road ) they have a extended bottom bracket which gives some sort of strength to the BB ... which I think. Questions 1 Can I upgrade this for something equivalent to D Ace2 Is there a product like this on the market?3 What does it cost Help ... Link to comment Share on other sites More sharing options...
dirtrider Posted June 7, 2007 Share you must be putting some serious watts out there to flex the BB that much . Entry level bikes usually got very strong BB and Cranks . I think a crank with external bearing may help some , never seen or heard bout this BB extention on MTB . Link to comment Share on other sites More sharing options...
Mudsimus Posted June 7, 2007 Share I think all you require is a minor gear setting. Link to comment Share on other sites More sharing options...
gasant112 Posted June 7, 2007 Share The gear adjustments has been made ..already. I am getting frustrated with this noise. I am thinking of replacing the damn thing but what would it cost me ? Link to comment Share on other sites More sharing options...
gasant112 Posted June 7, 2007 Share I have entered the wonderful world of MTB .. The part needs to be something equivalent to Ultegra ... This would be the 1st aerea... the shocks next gasant1122007-06-07 04:19:53 Link to comment Share on other sites More sharing options...
Marius Posted June 7, 2007 Share have a look at cwcycles under the Shimano Cranksets. Also think you might want to take ti to Mark's first before you spend money on it. a New Crankset is not going to fix te probelem except if the old one is broken..Think XT would be fine if you do go that route.Marius2007-06-07 04:24:01 Link to comment Share on other sites More sharing options...
Spinnekop Posted June 7, 2007 Share I have entered the wonderful world of MTB .. The part needs to be something equivalent to Ultegra ... This would be the 1st aerea... the shocks next If you want to go SRAM like I did, have a look at these: Good value for money. Otherwise go for the XT. Link to comment Share on other sites More sharing options...
AndreZA Posted June 7, 2007 Share Mine is also doing it when I'm in big front and 3rd smallest to smallest at the back. If the shifting had just one more click up I could eliminate it but it does not. It feels like the crank is flexing. I don't use those gears much so it doesn't bother me much. Link to comment Share on other sites More sharing options...
dirtrider Posted June 7, 2007 Share Spiderman I am not impressed with the Truvativ cranks . And I am talking from experience , these things just don't last (same goes for raceface) , go for the LX crank . It strong , cheap (er) and not much heavier than the XT . And if you a member of Style Man then you can always paint XT onto the crank ! Link to comment Share on other sites More sharing options...
gasant112 Posted June 7, 2007 Share What would the cost be ? Gents Link to comment Share on other sites More sharing options...
dirtrider Posted June 7, 2007 Share Not sure but bout R1400 I would say !! Go and look on the CW site . Link to comment Share on other sites More sharing options...
gasant112 Posted June 7, 2007 Share http://www.cwcycles.co.za/images/specials/051106_1600pm_lx.jpg LX CranksetDescription:LX CranksetSpecifications:Crank up your off-road rig's efficiency with Shimano's high-tech Deore LX crankset. The right crankarm and oversize bottom-bracket spindle are incorporated into a single unit for substantial weight savings. Plus, this design and the wider bottom-bracket bearing placement ensures maximum pedal power.Recommended Retail Price: R 1337 Our Price: R 1050Product Code: Link to comment Share on other sites More sharing options...
AndreZA Posted June 7, 2007 Share What would the cost be ? Gents If you get it from CRC you can get XT for R1185 including BB. See if anyone is ordering and then help with shipping costs. Link to comment Share on other sites More sharing options...
gasant112 Posted June 7, 2007 Share Thumbs Up ! Link to comment Share on other sites More sharing options...
SwissVan Posted June 7, 2007 Share Hi' date='<?:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />I have a fairly entry level MTB..( Mongoose ) the crank seems to flex when I stand and pedal.. The chain scraps against the front derailleur... I know on the Dure Ace group set ( Road ) they have a extended bottom bracket which gives some sort of strength to the BB ... which I think. Questions 1 Can I upgrade this for something equivalent to D Ace2 Is there a product like this on the market?3 What does it cost Help ...[/quote'] B4 you go wild and change the crank set, check the large chain ring (presume this is the one you are in when it makes the noise), it may have a slight wobble and coupled with the extra leverage / flex when u stand cause the chain to rub against the derailer.Might be able to get away with just changing the chain ring instead of the whole crankset.The amount of wobble might appear as nothing but it takes only a mm or 2 to rub Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now