I have a question regarding my bottom bracket

Mountain bike trails & Mountain bike reviews Protected: Forums Mountain Bike Forum I have a question regarding my bottom bracket

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    • #121259

      My bike has a b32 bottom bracket, I want to put a different crankset on it so that I can have 9 speeds. I will put some part names here so that you guys can get an idea of what I am wanting to do.

      Let’s say that I want to use a Sram S600 Crankset with an X.4 rear derailleur with Sram 9 speed cassette. I would get a FD that would be compatible with that. If my bike currently has a b32 BB in it, would a S600 crankset work with it?

      I am having a hell of a time finding out info on this.

      Any help would be appreciated. My cousin is a Sram rep and I messaged him about it, but he is on the road a lot, so it may be a while before he responds.

    • #121260

      Not sure I follow; why do you need a new crankset for a 9 speed cassette? Are you going to a 1×9?

    • #121261
      "Tr0gd0r" wrote

      Not sure I follow; why do you need a new crankset for a 9 speed cassette? Are you going to a 1×9?

      currently my bike has a 7 speed cassette. Would I need to get a crankset that mates up with a 9 speed cassette or would I be able to continue to use the one that I currently have and just put a 9 speed cassette on my wheel? I ordered a derailleur to replace the one that I just got, so that goes is compatible for a 7, 8, or 9.

      It isn’t really that easy is it? I thought it would be more difficult.

    • #121262

      Yeah it should be just as simple as swapping out the cassette/derailleur 😃

    • #121263
      "Tr0gd0r" wrote

      Yeah it should be just as simple as swapping out the cassette/derailleur 😃

      that is great news!

    • #121264
      "Tr0gd0r" wrote

      Yeah it should be just as simple as swapping out the cassette/derailleur 😃

      Sorry, not true. 9 speed chains are narrower, and you need narrower chainrings. I don’t know what a "b32" BB is….where are you reading b32? The S600 utilizes two types of BBs, so make sure you get the right crankset for the right BB: square spindle ([url:1dp6ssjd]http://www.amazon.com/Shimano-Square-Bottom-Bracket-68x118mm/dp/B005DTIDDY/[/url:1dp6ssjd]) or Power Spline ([url:1dp6ssjd]http://www.amazon.com/Truvativ-Power-Spline-Bottom-Bracket/dp/B003WOQENI[/url:1dp6ssjd]) spindle.

      Then, like you said, new FD, a RD that can do 9 speed, shifters for 9 speed, and a 9 speed cassette. This could be a serious overhaul….

    • #121265

      You will need a crank 9/8 speed compatible, 9 speed Shifter, 9 speed chain, and rear derailuer.
      There is no BB32 Bottom Bracket on the market so your not looking at something right. If your bike has 7 speed stock it is going to be a basic bike with a thread in bottom bracket so if you go with the s600 crank you will also need a matching bottom bracket with the correct spindle length or if you have a square taper bottom bracket now they make a s600 crank that would work.

    • #121266
      "billq0000" wrote

      You will need a crank 9/8 speed compatible, 9 speed Shifter, 9 speed chain, and rear derailuer.
      There is no BB32 Bottom Bracket on the market so your not looking at something right. If your bike has 7 speed stock it is going to be a basic bike with a thread in bottom bracket so if you go with the s600 crank you will also need a matching bottom bracket with the correct spindle length or if you have a square taper bottom bracket now they make a s600 crank that would work.

      Echo….Echo…Echo…. ;)

    • #121267

      thanks for the help guys

    • #121268
      "d_cushman" wrote

      Sorry, not true. 9 speed chains are narrower, and you need narrower chainrings. I don’t know what a "b32" BB is….where are you reading b32? The S600 utilizes two types of BBs, so make sure you get the right crankset for the right BB: square spindle ([url:1ocri9ar]http://www.amazon.com/Shimano-Square-Bottom-Bracket-68x118mm/dp/B005DTIDDY/[/url:1ocri9ar]) or Power Spline ([url:1ocri9ar]http://www.amazon.com/Truvativ-Power-Spline-Bottom-Bracket/dp/B003WOQENI[/url:1ocri9ar]) spindle.

      Then, like you said, new FD, a RD that can do 9 speed, shifters for 9 speed, and a 9 speed cassette. This could be a serious overhaul….

      Yeah you’re right, touche. I was thinking this was a 1×9, so no front rings/ramps to worry about.

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