I have converted my commuting bike from flat bars to drops and experiencing difficulties; specifically two problems. For information, it has Shimano deore rear derailuer (8-speed), and Shimano Argus (?) front, the newer style with the low seat posr bracket, shimano 3-ring front (28-38-48), V-brakes, and (now) Sora brifters (ST-3304). All problems below reference the front brifter as the back is working OK.
1). The shifters came with the cable fine adjustment screw for mounting on the road-bike style down-tube shift lever braise-ons. As this bike never had'em, there is no way to mount them, and thus, no fine adjustment screw. I have fiddled with it such that it more-or-less shifts into all three chain rings, but it needs to be adjusted such that it works more times than not, and a screwdriver and pliers only go so far. Does Shimano make a screw adjustment for the exit of the levers them selves, or do I have to get some old 10-speed screw barrel adjusters and JB-weld the stupid things to the lever housings ?
2). I put the rolly-polly thingers on the V-brakes to make up for the lever difference, but they do not return very well. The directions indicated that one may have to tighten the lever return spring to make them work better. My question, how do I (or even can I) tighten the shifter return springs. I see no obvious way to do this and this is far beyond the 27-language directions and picture-grams. All I can think to do is mess with the spings on the brakes themselves .
My bike is not really usable (for commuting) until I fix this . Help save gas, the environment, ozone, baby seals, and spotted owls! Help me figure this out .