[druber]

Does anybody make a 104mm 30t?

My new ride needs a new middle ring.

 

[C.P.]

I think you're out'ta luck.
I'm pretty sure the smallest ring made for 104 is 32T.

 

[Wumpus]

You could replace the granny with a 28 and move the big ring to the middle ring spot.

 

[Lumberjack]

We are working with a machinist for 20/30/40t rings but the 104mm spacing is killing us.

 

[shiggy]

We are working with a machinist for 20/30/40t rings but the 104mm spacing is killing us.

Go back to 5-arm 94/58 BCD cranks. 4-arm 104 was a bad idea.

 

[Guitar Ted]

Go back to 5-arm 94/58 BCD cranks. 4-arm 104 was a bad idea.

Make those cranks forged, and in 180mm and 185mm lengths.

 

[shiggy]

Make those cranks forged, and in 180mm and 185mm lengths.

100% agree - square taper please.

 

[klownprinze]

Agreed. All I run on my 29ers (the gearies) are 94mm BCD cranks (Sugino, RaceFace) with square taper. Perfectly adequate and I can get the right size rings on there for granny and middle rings. irate2: