It's a cartridge.

I'm sorry for being obtuse but are the cartridges replaceable? Do they require maintenance?

I'm asking because Shimano's Dura Ace track bottom bracket is advertised as "Sealed Cartridge" but it really isn't. It has dust seals and the bearings are in a plastic carrier "cartridge" for ease of installation but it isn't a true sealed cartridge. The fact that they print the words "Sealed Cartridge" on it don't make it any more so.

Stuff like this makes me very cynical.

So the Record Pista is maintenance free - install and forget until the bearings go bad?


-Tim-

A square taper? All cartridge bearings can be disassembled, they just aren't meant to be. Inside the cartridge (inner and outer races) the balls are are kept in a plastic spacer/retainer. And the unit has a dust seal pressed in. Is that what you are talking about?


As far as I know, yes.

What crank is this for? Is it ISO? Why do you want to spend $125.00 on a bottom bracket?

Search a little - is easy to find for $90ish


Do you have in mind track, road, or considering most of your posts, adventure/gravel riding? Do you actually want to be able to rebuild your bottom bracket? Or avoid maintenance?

I've been running a later production Campag Record Pista crankset for more than a few years on my bike and am on my 3rd BB, one of which was the matching Campy. Are you aware of the idiosyncrasies of this BB? Like the fact that there is a never-ending debate about whether it is asymmetrical, as described in mucho Campagnolo literature? Or not, as stated in many anecdotal posts all over the interwebz? Or that installing this (or other Campy?) BB requires a special tool? If none of that bothers you...

Out of curiosity I broke apart a Record Pista BB that I rode for lots of miles, a lot of it in inclement weather, that started getting crispy; so from experience I can tell you for a fact that it is not meant to be rebuilt. I imagine that it could be done, but chose to move on to something else. I will gladly provide more details if you'd like. If you are really after something that you can renew with some work - buy one of the old loose ball versions, they are pretty readily available, and are capable of lasting practically forever. If you want no maintenance, you will need to replace these things, the frequency will depend on your riding habits and climate.

Good luck and have fun...

Question, for anyone who has bolt on wheels-do you carry a wrench in event of a flat, and how do you carry it?

Dave

Yep, either in a jersey pocket or my messenger bag if I'm carrying it. Could probably find one that fits in the saddle bag, but I have a bad habit of losing wrenches so I don't buy fancy ones.

Thank you for this. Exactly what I was looking for.

This will be for a fixed gear bike for road use and I'm trying to avoid maintenance.

Record Pista bottom bracket, crank and ring are about the same weight and significantly less expensive than the equivalent Dura Ace parts and I am looking at options, that's all.

You asked, "Are you aware of...?" and and the answer is no, I am ignorant about the Campagnolo part. It doesn't sound like it is something I want based on what you describe.

Thanks again. Really appreciate that you took the time to write that up.


-Tim-

On my bikes with 15mm axle nuts, I keep a stubby combination wrench in the tool pouch under my seat, along with a patch kit, multi-tool, and usually a spare tube. I just buy the shortest, cheapest one I can find. I've considered cutting off the open end, so it's just a very short box end wrench. This would make it easier to pack. Haven't gotten around to that yet.

I have one bike with Phil Wood hubs that use 6mm internal hex bolts ("Allen" bolts). I carry an Allen wrench on it. I almost always have a multi-tool, but some of them are so short, they might not give enough leverage to loosen the axle nuts. A slightly longer stand-alone wrench ensures I won't get stranded.

A certain San Diego shop owner has described that crank as far from rigid.

Get one of these. Comes with a built in rubber coated tire lever. PDW 3Wrencho ;)

http://www.treefortbikes.com/images/...encho_v2-4.jpg

He seems much more concerned with weight, though.

What bag are you using? Sounds like your wrench is shorter than mine.

Dave

It's more of a hard plastic ;), but yeah this thing is worth the extra money over a regular stubby wrench. Not only does it kill 2 birds with one stone the tire lever portion makes a great platform for your palm to push down on.

I just strap it to my spare inner tube with a couple rubber bands and carry it in my saddle bag or jersey pocket.

http://www.os2.dhs.org/~john/ride-tools.jpg

Since it's a choice of:

A) Carry the proper sized wrench
2) Make the Mommy-Call-of-Shame
III) Walk home

I choose "A" and fit a Campag "peanut butter" wrench in my seat bag/flats kit.

-Bandera

Yep. And because it's flat the opposite way of a traditional wrench handle, it makes a great pedal for people who don't have a lot of hand strength.

LOL Mommy Call of Shame :)

I took a flat wrench and cut it in half with a hacksaw. The reason was simply that I needed wrenches for two bikes, and I don't need all that much leverage. It goes into my regular sag bag.

This. My wife and I each carry one in our saddle bags. I have an Arundel Dual.

Saw a couple of neat bikes on Craigslist today. They look like decent steel frames, and might be a little bigger than my current frame. Here's a link:

https://atlanta.craigslist.org/nat/z...558574071.html

Would it be possible to convert the motobecane (the blue one) to a fixed gear bike? Looks like it has vertical dropouts though :-p The brown bike looks like it might work better, can someone take a look?

Dave

"This posting has been deleted by its author."

(cue sad trombone)


-Tim-

Lol

I need help finding a compatible headset for my bike. Right now I have the stock Aventon (which is really FSA Orbit) headset, but I can't seem to find a replacement anywhere. What I really need is a shorter top dustcover, but I can't find them on their own, so I'll just buy the whole thing if I can find it. Currently the dust cover is 15mm and I need to lose about 5-10mm with a shorter one. Like the Cane Creek Short Cover options.

It is an integrated headset, but doesn't use cups like it looks like Cane Creek uses. The box lists these measurements, but I don't really know how to interpret them across the interwebs. Everything I read has different numbers and I don't know which one corresponds to what.

Thread - 1 1/8
Diameter - 28.6 44/30
Stack Height - 10.5 + 3 + 13.5
Bearing - Sealed
Material - Aluminum

Thanks

Something like this would probably work:

https://www.ebay.com/itm/1-1-8-Low-P...M/252784340097

That's just the first result for 'headset cover' I looked at, but it seems close.

The worry is in whether or not it will seat on the top part of the bearing. I purchased a shorty dust cover from an LBS and the inside seat diameter was too narrow to sit over the top of the bearing correctly. It sat on top instead if allowing the bearing to sit inside.