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I think Gebhardt do 3/32 chainrings in that BCD size but they are hard to find
Bike24 have 48T 3/32" 135mm pcd Classic (no ramps or pins) in stock
Black:
http://www.bike24.com/1.php?content=8;navigation=1;product=95089;page=1;menu=1000,4,122;mid=741;pgc=122:433::15796:15797
Silver:
http://www.bike24.com/1.php?content=8;navigation=1;product=95093;page=1;menu=1000,4,122;mid=741;pgc=122:433::15796:15797
gbj_tester
Mainly due to having a 1/8" chainring up front...in a difficult 135BCD size too. I think Gebhardt do 3/32 chainrings in that BCD size but they are hard to find. Running a 48 up front and am considering going 48 or 49 with 17, 18 or 19t rear freewheel (still need to decide a ratio so might use some cheapie shimano freewheels.
Would different brands move less? I understand that the distance between the inside plates is the same, but I wonder if the plate shape of different brands would affect chain lateral movement on the freewheel teeth.
Ultimately, the ideal solution is a 3/32 ring and chain as you say.