the 'there's no such thing as a stupid question' bike maintenance thread

Nah its the one bolt clamp, looks like I need to centre it on the saddle rail which will shorten the reach, I'll do it this evening and try a 50 ish spin in the morning before the heavy rain comes. The Domane is an endurance bike so maybe I am meant to be more upright on it ?

Mine has been slipping on the last few rides. I took the saddle and clamp off, cleaned the inserts and applied some copper antiseeze and tightened it back up again. Was fine on the two spins yesterday.

I have to remove my bottom bracket (a Shimano BB-MT800 which came with the bike) and don't have a TL-FC25 bottom bracket tool/adapter. Any B&M shops around Dublin that sell a TL-FC25, or should I have at it with a vice grips? 😀 Really would prefer not to wait for a week until I can get one delivered. I have the Halfords equivalent of the FC32, which is too large to remove the bracket.

I might have one and am just off the N11 in Foxrock if that's handier? I'll check in the morning.

I have these two. Blue one is similiar but not quite the same(!) as 44mm 16 notch one. You're welcome to borrow them to see if they work. I'm around all day today. PM if required.

Edit - PS I've just remembered the red one came with an adapter that has FC-TL25 written on one side and FC-TL24 on the other!

This is the adapter I have -

I had an similar sounding issue with a 105 5800 shifter a couple of years ago. In my case, it became very stiff to shift down (i.e. smaller to larger sprocket) and shifting up did nothing. It happened intermittently for a while, then the shifter just packed up completely.

The problem for me turned out to be the grease in the shifter body. It had solidified with age/use - apparently reasonably common with Shimano shifters. I fixed it by peeling back the rubber hood from the front, and opening the plate on the side of the shifter body giving access to the internals. Flushed out the original lube with a spray degreaser, flushed that out with water, let it dry (think I might have used a hairdrier here to move it along), liberally applied a PTFE spray lube, wiped away the excess and put everything back together again. It's been performing perfectly since with probably in the order of another 8-10000km on it

Well, in fairness, the whole thing only cost a tenner! It's clearly not workshop quality but I managed to get my BB on with it.

I find those plastic adapters fine for installing a BB but useless for removing as they strip as mentioned above. Best to get a metal/steel tool.

Another thing worth mentioning is that the Ultegra 6800/105 5800 BB is slightly larger than the Dura Ace 9000 so the tools required are slightly different. I'm not sure about the sizing of other iterations of either groupset.

I’ve a steel framed bike that needs the seat tube reamed to diameter as I cannot get a seatpost adjusted without damaging the seatpost with scratches and zig zags.

Any recommended shop or person in Dublin who has a reamer and experience of doing this?

I suppose I should just go ask the local shop.

I'm on mobile, and I can't seem to generate a link from the Amazon app, but if you Google Adjustable Hand Reamer there's loads of inexpensive options

If you've ever tapped a hole, you can ream a seat tube

Sheldon Brown says yes

Perfectly fine. Hydraulic hose is armoured internally to withstand the hydraulic pressure of using the brake.