Ryan_M

Hello all!

First post here (yay me). I just got a Giant FCR2 like 6 hours ago and have been out cruising the subdivision. I'd planned on getting a FCR3 but they didn't have my size however I was an easy sell on the FCR2 (my own worst enemy) and gotta say I love this bike. I don't know if it was the best bang for the buck but if feels awesome. Sorry getting OT.

I haven't been on or dealt with any bikes in about 15 years and my last bike was a mediocre road bike so I've never dealt with these ratcheting shifters. The rear seems to work perfect 1 click up, one click down, easy. But the front is a different story. Some times it will click and not shift a chain ring but start rubbing the chain and some times when I do shift a chain ring the chain will be rubbing on the derailer depending on what end of the cassette I'm on. Now I'm pretty green and not used to these new dang fangled contraptions so I'm suspecting it's a DFU problem and not a mechanical one, at least I think. The shifter on my aging road bike is just friction so I can put it where it needs to be to not rub the chain. Is there a trick to getting this one to work the way I want?

BTW is this the correct section for this??

Thanks for any help!
Ryan

TimJ

It depends on what kind of front/rear combo you're doing if there's a real problem or not. I mean, it's kind of vague what you're describing.

That's a flat-bar bike, right? It should be set up so that when you're in the small ring in front you shouldn't have any rubbing on the derailluer cage till, I dunno, 1/3 down the cassette? The middle ring should be able to cover most of the cassette with no rubbing, the big ring should be able to cover the smallest 3 cogs or so without rubbing...

If you're in the big ring in front and halfway up the caseette in the back, you should expect rubbing, so you'd need to describe exactly when the rubbing and not-shifting occur. If you were in a big cog in the rear and tried shifting from the middle to the big ring, it might not be unreasonable that it wouldn't want to shift up front, you know?

Ryan_M

Hi Tim,

Yes it's a flat bar bike. Here is a link to the bike and there is a spec page if you needed to know model numbers of the components.

That's what I was wondering if I was limited to a certain section of the cassette depending what chain ring I'm using. On my road bike the front derailer is just friction so I can put it where I want. I could for example be on the large chain ring up front and the largest cog on the cassette without rubbing, but probably not good for the chain I suspect. I thought maybe those (what I'm calling mis-shifts) is really some feature allowing me to make slight adjustments to the position of the front derailer to prevent rubbing depending on what end of the cassette I'm on. I know I should get used to changing my gearing habits to prevent too much chain deflection. I'm sure I'll get it ironed out the more experience I get with it.

Sorry for being vague, it sounds like you understand what I was asking.

Ryan_M

I looked into this a bit forther and played with what I have and it turns out this derailer has 6 positions. So the so called mis-shifts were just a "tuning".

Bill Kapaun

Actually, it's called "trimming"

Glad you figured it out. Enjoy your ride.