LX 539 or XT M739 big chainring option

[Ottoturbo]

The chainring/spider for Shimano 539 and 739 is expensive, any options for this?

 

[BerthaPog]

The chainring/spider for Shimano 539 and 739 is expensive, any options for this?

They did do an "adaptor" that took standard four/five bolts rings - not sure if they are any cheaper, and possibly harder to find than the rings.

 

[ishaw]

As above. If you want a good set of rings (lx) I'm going to be selling an lx crank I think.

 

[Ottoturbo]

Re:

Some cranks has a separate chainring and spider, mine has unfortunately but cooler looking integrated spider chainring.

 

[integerspin]

You might find you can use the adapter from the similar looking STX crankset, and there was one in
the for sale section for 15 quid recently, it's 4 bolt.

 

[wesmamyke]

Just went through the same thing. I eventually found a cheap pair of 175mm XT cranks to steal the 5 arm 94mm BCD spider from. I have also seen the integrated chainrings for a reasonable price, some listed on ebay US recently for $35 shipped.

I have a decent condition large spider/ring that came off my 170mm cranks, although it might be an LX. Was thinking about doing horrible things to it with a saw and grinder to use as a single speed spider. If someone needs it just shoot me a PM.