You've exceeded the capacity of the derailleur. You said it was rated at 38t, and you have 43t total. The behavior you describe is expected. Well, expected by me. Other people may have differing ideas of how rear derailleur capacity is stated.
The top left section of this page discusses it: http://www.sheldonbrown.com/derailleur.html On Wed, Jul 28, 2010 at 10:47 AM, Garth <garth...@gmail.com> wrote: > Greetings, I finally got my Bombadil going, I'm using a vintage > Deore RD-MT60 > http://www.velobase.com/velobase.com/ViewComponent.aspx?ID=3f73f16c-1a7e-46c5-ab73-f21755e71b08 > > The capacity is rated at 38t. I'm using a 24/36/48 and 13/32 FW for 43 > total. The issue I'm having is when in the 24t ring, and either the 28 > or 32t cog, the pulley wheels are too close to the cogs. When spinning > forward, I don't notice it, but if I spin the pedal backwards, the > pulleys make a grinding noise, as they are right up against the cogs. > I have the angle screw at the max, but it helped only slightly with > the 28t cog, but not the 32. My chain length is proper. > > Having this wide of range of gearing is new to me, so my first > assumption is that I've exceeded the capacity of the RD. If anyone > has an answer, I'd appreciate it. > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to rbw-owners-bu...@googlegroups.com. > To unsubscribe from this group, send email to > rbw-owners-bunch+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/rbw-owners-bunch?hl=en. > > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
