Joined: Oct 2011
Posts: 10,044
Likes: 2,505
From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
You won't gain anything in braking or stopping power. You might even find that you have a little less with the sidepulls. One thing to look at consider is most of the older Nishiki's had a fairly long brake length so the side pulls you have may not be long enough exspecially if you want to run 700c wheels at some point.