Wanted Sugino impel chainrings

[Shaznaz786]

Hi All,
I'm looking for chainrings in new or nearly new condition for my sugino impel crankset on my trek 930.
I've recently replaced the cassette ( sunrace) and chain ( hg 51) both new and gears are slipping under high torque. Large cse 42 chainring may be the cause. See pics.. could be I need a narrower chain like a kmc. Lx shifters 8 speed. Xt m737 front and rear mechs.
I don't know the bcd for the crankset.. plus I'm wondering if a larger chainring 46 would be OK. Would prefer to keep as is though largest ring 42 teeth.Open to offers and opinions.
Thanks in advance.

 

[sksmith2500]

BCD should be 94/58.
Not mine, but they are out there.

SUGINO COMPACT Chainring 42T 94mm BCD 5 ARM C SUPER SHIFTER CSP42 MTB | eBay

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Any 94 BCD outer & middle ring should fit & any 58 BCD inner ring should fit.

 

[marc two tone]

Show us a pic of the inner side. There is a sugino crank with a crazy setup, where all 3 rings are fixed via same hole. And a wacky bcd of 74 somewhere amongst.
Just to eliminate of course.

 

[sksmith2500]

Marc, you may be correct. Look at Pic # 2, looks like all 3 chainrings are attached with the same fastener. My error, and glad Marc brought this up.
If this is the 74 BCD version, you are better of replacing the whole crankset.