View Single Post
Old 10-21-13 | 02:13 PM
  #32  
pastorbobnlnh's Avatar
pastorbobnlnh
Freewheel Medic
Titanium Club Membership
Sheldon Brown Memorial - Titanium
20 Anniversary
 
Joined: Oct 2005
Posts: 13,569
Likes: 3,314
From: An Island on the Coast of GA!

Bikes: Snazzy* Schwinns, Classy Cannondales & a Super Pro Aero Lotus (* Ed.)

Originally Posted by jeirvine
Very nice. How did you manage countersinking the holes?
I should mention that the granny is larger than 74BCD, which would have placed the holes IMO too close to the 50.4BCD holes.

I had a church member hand it off to a machinist in his company to do the work. The counter sinking was minimal so the chainring bolts do not sit as flush as normal, but I'm not complaining.
Originally Posted by jonwvara
Thanks, Bob--I will take you up on your offer of the TA triplizer for use as a pattern sometime later this fall. I've actually been trying (albeit not all that hard) to find one for that purpose for a couple of months now. I'd only need to borrow it for a week or two.
My Web site is redclovercomponents.com. It's not functioning yet--I'm still working on making sure the whole e-commerce setup works as it's supposed to. I hope to actually be selling stuff by November 1.
Jon, I'll be gald to send the TA Triplizer for the prototype. It looks better than the Merz, which does not use a 74BCD for the granny.



__________________
Bob
Enjoying the GA coast all year long!

Thanks for visiting my website: www.freewheelspa.com






Last edited by pastorbobnlnh; 10-21-13 at 07:31 PM.
pastorbobnlnh is online now  
Reply