Any question answered...

Something like anyvan , have used them or similar services for big heavy items like that before.

Awesome, cheers DanB

Arkose fork. Carbon. QR skewer. Tighten.
Loud crack.

It's the skewer isn't it?

Can you see a crack?

Can I use a fd clamp as a seatpost clamp?

Is it strong like ox?

I couldn't last night. Will check again this morning. It's the camo paint scheme one, so it's not particularly easy...

Or toight like a toiger?

Didn't do a die.

Long shot but can anyone tell me what the hubs are on a islabike beinn 20? Cup & cone type things and the front cones are pitted. Tried swapping in some shimano cones but wouldn't adjust right. Google is a dead end.

can anyone tell me what the hubs are on a islabike beinn 20?

I bet Islabikes can tell you, give them a ring tomorrow.

Top 3 choices would be Kun Teng Industry Co. Ltd., Joy Industrial Co. Ltd. and Formula Engineering Inc., but that won't get you very far as they are not likely to be a catalogue item.

Good idea, have emailed them. Spent an hour wet sanding the cone smooth just to get the bike rolling again. But suspect it won't last very long.

Stuck square taper cartridge BB - any bright ideas?

One cup is plastic and the other alu in a (battered) 1997 steel frame. The plastic cup obviously frigged itself when challenged, shedding all its teeth, so I've drilled and milled it out as best I can with a Dremel. I've spunked WD40 into the area of the aluminium cup several times since before Xmas and tried several times with a 3-foot pry bar. It's managed to kill one cheap Cyclus(?) tool so far.

I've also tried hammering the cartridge out of the alu cup, but I don't think it's moving.

Where next? Caustic? Plus Gas? Liberal application of heat?

4 foot bar?

Something something... a large nut & bolt ...something something

@Vince

Did you manage to get the cartridge BB out after destroying the plastic cup?
If so, you could now thread a hacksaw blade through the BB shell, attach to the hacksaw and saw a few notches into the remaining metal cup (being careful not to damage the BB shell thread) so it'll hopefully fold in on itself with a bit of force. I think I read that @sumo had done this and provided pictures?...

Sadly not. There's a "ring" of plastic between the cartridge and the frame shell that I can't get to, and I think that's keeping it in. That's why I'm thinking of melting it out somehow...

A mechanic at LMNH did that for me once after I rounded out all the teeth on the stupid shitty Shimano BB. You just need to cut a chunk out then use a vice to squeeze on the bit that extends past the BB shell.

Have you taken the BB cable guide off?

The screw might be holding the cartridge in place.

The issue is that all the teeth of the cup are gone.

I have a fine thread bolt and a large washer which I use to secure the BB tool to the BB cup.
Then use a long metal tube for leverage.

3 Attachments

Longer metal tube.

Yup, that's my lube inlet...

That's not a bad idea. Does the bolt need to be so long? Would a crank bolt not work OK? I did try that technique, but the threaded hole in the taper was full of mud/rust so I gave up...

Drunkenly wandering past a tesco express with a load sitting out the front...

No it was something else. Perhaps it wasn't you.

It used penny washers: maybe you need two nuts, lock one of against the other and then turn the locked nut to rotate the cup?

Of course the problem being that you need to remove the cartridge first...