[jej]

Hey,
I'm building a custom singlespeed, I'd like to know what are the pros-cons for an eccentric BB or for some sliding dropouts. What is the more robust, reliable..etc.Thanks

 

[sanjuro]

The eccentric BB has the huge advantage of a static rear axle, so there is no playing with brake adjustment (and you can convert easily back to gears). But I have heard the eBB will creak.

Also, I would put the rotation adjustment on the left side, not the right, for easy access as the chainrings will get in the way.

 

[peter6061]

I'm on my second EBB at this point. They do creak after a while, but nothing ten minutes of work doesn't take care of. Did mine in the parking lot of the trailhead last week with three tools.

I will say, I like the two-bolt systems better than the wedges for ease of adjustment.

First frame was a C-dale 1FG. Now running a Niner SIR9.

 

[jej]

Just to clarify, I'm talking about sliding dropouts (like the paragon ones: http://www.paragonmachineworks.com/) NOT the horizontal dropouts AKA track dropouts.
Anyway, thanks for your info about the ECC, I didn't hear about creak but I heard it could slide, move..etc

 

[BikeGeek]

Those are NICE looking sliding dropouts! I have something similar, with the disc tabs machined as part of the dropout. I like the concept a lot, but am almost ready to give up on mine. They don't have an integrated tug and the tugs they came with are junk. Those look solid.

 

[MMcG]

Those are NICE looking sliding dropouts! I have something similar, with the disc tabs machined as part of the dropout. I like the concept a lot, but am almost ready to give up on mine. They don't have an integrated tug and the tugs they came with are junk. Those look solid.

BG - are you having trouble with your Inbred?

 

[BikeGeek]

BG - are you having trouble with your Inbred?

Yeah, still bending the driveside tug, even with the reinforcement. I guess I need to suck it up and order the new beefy tugs from On-One.

 

[MMcG]

you are an animal!

 

[frorider]

experienced SS'ers told me to use Ti anti sieze paste on the EBB---works better than grease. my EBB has been creak - free...i probably have less than 500 miles on it though.

anyway, i've been using the anti sieze paste on other parts for over a decade, and it is very tenacious stuff. so i'm not expecting any issues.

i like the clean design of an EBB bike.

 

[particle bored]

Not all sliding dropout setups require rear brake adjustments when you move the wheel.

On-One Inbreds from 2006 have a nice system that has sliding dropouts with the rear wheel sliding along with the dropouts. Pretty slick.

I think it depends on which one you are more inclined to be willing to work with. Do you want to work with getting an eccentric BB rotated to tension your chain, or do you want to do it at the back wheel.

When done by a good frame builder, there is no functional difference i the quality of the ride of the bike, other than the fact that an EBB bike puts a bit more weight at the BB and **might** feel a little more planted or stable as a result. **might.**

 

[johnnyru]

EBB all the way. I like the ability to change gears without changing the way the bike performs on the trail, regarding chainstay length. I think it makes it more aesthetically pleasing to the eye...no funny stuff going on at the rear of the bike...but that's me.

 

[Heath Sherratt]

EBB also adds to the rigid factor of the frame...a big plus for singles.

 

[ito]

Between the two I'd go EBB, but I'm still a huge fan of track style dropouts. Larger amount of adjustments means that I can run my 13t track cog and my 18t freewheel without changing chains/chainrings.

I also prefer a simpler bike with less moving parts. EBB is just another thing to go wrong (though they appear fairly robust).

All that said I'm having my Draco hardtail converted to an EBB (assuming John can figure out a way to do it). It is a clean set up and I have never liked the look of sliding dropouts.

Track dropouts are the way to go though.

The Ito

 

[zebrahum]

I'm with ito, I can't stand when a bike makes noise and EBBs are just too much work to keep quiet at all times. Simple is best. Both do the job, but I'm partial to horizontal drops.