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Oner EBB Thoughts

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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Oner EBB Thoughts

Old 12-15-22, 06:45 PM
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Oner EBB Thoughts

Stumbled across something new to me, but it looks like it has been around for some time now so I bet we have people here using them. I am still in the process of piecing together my singlespeed and thought maybe this EBB would be better than the sliding dropuout. Seems like it would be. Purpose of my SS is to ride it similar to places I would ride a gravel bike as travel around. So rear gear swapping is needed.

Any ideas or thoughts on this?

Reference info:

https://www.squidbikes.com/collectio...bottom-bracket


And this is the bike I saw it on first that started this train of thought: https://www.speedvagen.com/2022-custom-team-cross

Thanks in advance


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Old 12-15-22, 07:30 PM
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If you plan on changing gearing regularly, an EBB is the worst possible solution. The amount of adjustability is minimal, so you will have to add or subtract chain links every time you make a gearing change, and adjusting the EBB is not simple or easy. Either use a spring loaded chain tensioner or a horizontal dropout.
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Old 12-15-22, 10:15 PM
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I would look to build a frame with dropouts similar to to the All City Super Professional or the Otso Warakin. Paragon Machine Works makes a lovely version as well if you are going custom. The only place I would do an eccentric would be on a tandem or I absolutely had to turn whatever random frame I had into a single speed that I wasn't changing gearing on or anything but I wouldn't do that personally. I would get the frame modified to be a single speed/fixed gear or better yet just get a dedicated frame with the geometry I wanted or find one of the available options like the AC or some of the Otso frames (they have others with similar dropouts) and potentially others. I hate the look of the conventional sliding dropouts for QR or thru axle but the enclosed stuff looks good or if I am building a plain old road fixed gear I would just use track ends and not bother with anything else.
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Old 12-15-22, 10:49 PM
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What they said above is true and all against the EBB method.

An EBB may be prone to creaking as well - however my experience with two of them was not a disappointment in that regard.

Another consideration, albeit a minor one, is that they are a heavier method to tension a chain, because the BB shell is larger (this is probably good for frame stiffness though) , because there are two stout bolts to cinch the thing together, and because there is the nice machined clump of aluminum the actual bottom bracket threads into.

All the same, if it's a single speed bike, it's worth putting up with it.

Yet we read that you might be changing the ratios from time to time. Well, that's not a strong suit for the EBB.

As a single speed person, I wasn't altogether happy until I finally got a bicycle with proper track ends, and proper single speed hubs together. If your going to change gear ratios, flip wheels, and so on, track ends are the way to go.

But if you want hydraulic disc brakes then you've got to look into the types of stuff that single speed mountain bikes had to develop.

Don't wait. Get a single speed going and then think about it some more afterwards.
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Old 12-16-22, 06:14 AM
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I use the Niner biocentric bottom bracket. It's the same concept and works well. It has enough adjustability to go multiple teeth change on either cog or chainring. I much prefer it over spring loaded tensioner. The only cons are that it isn't the quietest, and with the adjustment of the bottom bracket you change your effective saddle height and fore-aft. However, for me pulling the bottom bracket to clean and reinstall is a 15-20 minute job and it's silent for another month or until I ride in a heavy rain. And with horizontal dropouts, you have to adjust the brakes after gear change rather than the saddle/seatpost.

I'd only say it's a deal breaker if you're very particular with your bike fit. I don't mind having to move the seat post up and down. I have it marked for my two favorite gear combos. And I don't even bother with changing fore-aft as it doesn't bother me. If you can live with that, go for it. I think it opens up a lot of cool frames to singlespeed.

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Old 12-16-22, 07:09 AM
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Personally I'm committed to trackends on my one-gear bikes so can't really add to discussion of merits of the various tensioning methods for your dealy.

But before even getting to that point - I think to use that particular BB you need to have ascertained if your frame fits a PF30 bottom bracket and decide whether you mind living within its crankset limitations.

Good luck...
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Old 12-16-22, 05:27 PM
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I wish the EBB was a good singlespeed solution, but I haven't found that to be the case. Sliding dropouts, on the other hand -- especially like those found on the Kona Unit (and other models) -- pretty much solve any and all issues regarding chain tensioning, disc brake alignment, and gear swapping. As a bonus, if you ever decide to run gears, you can slam the rear wheel all the way forward, shortening the wheelbase and making the bike a ton of fun.

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Old 01-09-23, 11:03 PM
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Oh dear, Apologies for the delayed response. Thought I posted already.

Thanks for all the input. The EBB looked to be a great solution, but glad I asked the question first. Appreciate all the information and will stick with my original thoughts on the Paragon Machine Works rocker dropout.

Thanks again, and as always, appreciate the feedback.
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