BoSoxYacht

Hence, why I wanted to adjust the chainline . Thank you for pointing that out, Captain Obvious.

Dannihilator

If you want to do that why don't you just get a chain guide? You'll need a longer spindle anyways.

Hank Rearden

My, my, you're awfully touchy aren't you? The reason why I asked the questions is because your explanations don't make sense, froma mechanical standpoint or a riding standpoint.

So, if you do go ahead with this project you're going to need to pay close attention to the amount of clearance that you currently have between the teeth on your little ring and the chainstay bulge. If it's tight now, you have very little room to move the BB inboard.

Assuming that you have enough clearance, you also need to consider possible interference between the chain and your tire when riding in your lowest gear combo. This can definitely pose a problem, even with relatively narrow 2.1 xc-ish tires.

mcoine

The old white bros bb was adjustable, there are a few on ebay now and then, but I don't think you need one.

mcoine

off subject, but, I'm totally with you on the no shimano, no sram thing, but what other brands would you use for derailleurs lets say.

BoSoxYacht

I use front deraileurs because for my riding, I need them. I hate them , because they suck, but I still need them. Why would I want to make 2 shifts to get the ratio I want, when a click of the index finger will get me the gear ? As I said , "It works for me".

Dannihilator

I'm a singlespeeder.

mcoine

why yes you are, I thought for sure you had gears on your bike, sorry.

Dannihilator

E.thirteen DRS(Dual Ring Security)

Remember this though even a longer BB spindle will effect how you ride and how the bike handles, every part on the bike except the grips have an effect.

You should try setting a singlespeed up, you'll find that a straight as possible chainline is king next to the proper chainlength. Also how do you know that you need all the gears, how many times do you really shift in the first place, you face less maitenance, the bike is quiet when being ridden and no real deraillieur lag to note.

gmoneyhobbit

also if ur moving the entire crank over.. there might be some complications with front derailleur shifting... maybe not.... just throwing that in though

Dannihilator

Which is why I mentioned a chainguide.

BoSoxYacht

Thank you for pointing this out, I haven't thought of that yet . Better check that out . As far as being touchy , I've seen tons of your posts and I feel that you enjoy belittling people that don't agree with you .No big deal . BTW I just checked and there's a centimeter of clearance . I run a 2.35 Nevegal in the rear . Surprising how much room there is. Maybe this is the wrong BB spindle length for the bike .?.?

mcoine

can you post a picture of the setup?

Hank Rearden

Pot, kettle, black.

"I think I may have been a little hard on Worldwind . He prolly doesn't get much conversation at work and needs a little banter ."

If questioning people's goofy, illogical "facts" or practices is belittling, then so be it.

Enjoy your long-chained, cross chaining setup!

BoSoxYacht

the sram X-Gen has lots of room on the low end ,not too much on th big ring . If I mash the 42x11 real hard it rubs , even with the high stop backed all the way out. I think the frame might have the wrong BB in it .

mcoine

this is a derailleur adjustment issue it sounds like, not bb. the angle and height of the front der. is very important for the big ring.

BoSoxYacht

Hank , He's an M.E. his clients don't have a lot to say.

gmoneyhobbit

i kno some one who only runs big ring up front .. 44 that is... with 11-34 rear.. i have said many times on rides its not too great... but hes at the level where it doesnt matter.. which is why hes shifting to a single ring 44 up front...

why dont u just go single ring in this case?

BoSoxYacht

not tonight , dead batteries. I hate when that happens

BoSoxYacht

the 42x11 mashing is on a 6.5 mile (1800ft elevation) downhill. This only happens when I'm mashing the pedals ,not spinning it . It was said to point out how far away from the frame the set-up is . I'm not spinning that gear on flats.

BoSoxYacht

when I put the front Der. on (Sram X-Gen) , the propaganda that came with it said something about the seatpost angle. Are there different front deraileurs depending on seat post angles ? there never used to be, but things change, I guess

BoSoxYacht

I do plan on setting up a SS fairly soon as a second bike . For the riding I do, it's just not practical to use as my only bike. To me that's like buying a sailboat instead of a motoryacht. We have the technology to go faster , longer , easier , so I'm going to use it.

mcoine

I was talking about the angle relative to the chain, like if you are looking from the top.

BoSoxYacht

I switched the BB with another one I had on a hardtail frame that was lying around, Problem solved . it was about 4-5 mm smaller than the one I had been using. thanks for everyones help

rhkim

Have tried using those Shimano BB spacers? I've been able to get away with some mis-aligned chainlines with these.

bikeparts.com has them.