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  1. Uncle Grumpy

    BoTM Bike of The Month July 2025 - now taking entries

    For a minute there I thought this months theme was "blue bikes with purple accents".
  2. Uncle Grumpy

    Alpinestars Alpine SS

    Excellent project! What are you using for chain tension? I assume "close enough combination + horizontal dropouts to pick up the slack"? And you do realise the backgrounds of your photos offer hours of enjoyment - tell us to focus all you want, but the distractions are too... ummm...
  3. Uncle Grumpy

    Decent pair of cranks ruined

    What a shame. Oh well, grind it out to take away any stress riser, sand it with increasing grits of wet and dry paper until smoooooth, install them on a bike, drink enough to forget what has happened and stay away from "gnarly sends". They will still have 127.3% more metal volume than a set of...
  4. Uncle Grumpy

    Curious workshop ….

    You may have just restored some of my faith in humanity.
  5. Uncle Grumpy

    Curious workshop ….

    Is there a TL : DR version? This is 2025. Nobody has the time to read that kind of stuff anymore, we need the 2 line summary... with links to the product on Ali Express. And it needs a catchier clickbait title like... 15 reasons AI is making humanity more stupid than it already is - number 7...
  6. Uncle Grumpy

    Curious workshop ….

    You have to forgive the mechanic for any errors - he is actually a carpenter if his workshop is anything to go by. My god, the more I look, the more I pick up on dumb errors. Is this one of those "Our illustrator has made 100 deliberate errors. How many can you pick?" type of games? One...
  7. Uncle Grumpy

    Humanity's 10 greatest inventions: the other 9?

    Oh I don't know. The sort of species that is happy to build a weapon that can wipe out civilisation in 30 minutes, plus every living thing with it and render the planet uninhabitable for millennia is hardly the sort of species worth respecting and wanting to protect. To hell with humans. When...
  8. Uncle Grumpy

    Crank and pedals

    I had a creaking crank once. Only when pedalling and did it both in and out of the saddle. Pulled the crank and BB, meticulously cleaned and greased the BB threads. Reinstalled it. Still there. Pulled the pedals, meticulously cleaned and greased the threads. Reinstalled them. Still there...
  9. Uncle Grumpy

    Cup and cone BB race: how many balls? Room for another?

    That's because Google'a algorithm is based on all the other stuff you've looked up. That browser history is skewing the results. Ask me how I know...
  10. Uncle Grumpy

    Can steerer tube be made longer?

    Do not use one of those adapters above - they are for converting a quill steerer to take a treadless type stem. They are useful for opening up the options for a quill fork to take a 2 bolt clamp stem (which are hard to find in quill) or a 31.8mm stem to take modern bars, but you really need a...
  11. Uncle Grumpy

    The shape of things to come....

    As usual, Sheldon has the answer... https://www.sheldonbrown.com/cribsheet-headsets.html 26tpi is an East German or Raleigh standard. Being a Carlton, I'd go with Raleigh, which is basically JIS except for the threads. Bloody kids in shops these days would think "Sheldon Brown" is a "colour...
  12. Uncle Grumpy

    Mystery and Unidentified Parts

    Lizard, by Vanguard. They also made cantilever brakes and were mostly aimed at the BMX market. I have a pair of the cable hangers in green somewhere. Unfortunately not the place I thought they were so can't provide a photo. I also had the brakes but I think I swapped them for something...
  13. Uncle Grumpy

    Suggestions to stop brake cable ping (not zip ties)

    Wrap jelly snakes around the hose. Not only will it dampen the pinging, but you have an emergency energy source should you get an energy crash on the trail. Okay seriously... maybe something like these... https://www.amazon.com.au/Jagwire/dp/B01MT56XCZ?th=1&psc=1...
  14. Uncle Grumpy

    Did Raceface make a 27.0 seatpost?

    Never seen an XY in carbon! That must be a rarity!
  15. Uncle Grumpy

    Did Raceface make a 27.0 seatpost?

    No, it's actually a matte grey. Not a polished silver, but an anodised grey. I have black ones in 27.2 and 30.9 as well, all 3 are in use. They are the best seatpost I have ever used, so simple to adjust and they stay in place. Race Face, you listening? bring back the XY and XYO seatposts...
  16. Uncle Grumpy

    1985(ish) Mongoose ATB - might be a slow burner!

    32.6mm is a BMX head tube standard, which makes sense given Mongoose's roots in BMX. Look for a headset in 32.7mm cup diameter to give the interference fit. Lot's of decent headsets for BMX still being made in that size, or track down something period correct. Oooh, this one! Damn, the red...
  17. Uncle Grumpy

    Did Raceface make a 27.0 seatpost?

    I have an XY in 27.0. Not sure of other models, I think later models just went 27.2, 30.9 and 31.6.
  18. Uncle Grumpy

    Can someone tell me what this is?

    I'm a descendant of the inventor of the Grumpler. I still have one out back, along with a couple of broken Thwangles and a box of the original spec oily rags. Gawd, I'd love to get that thing going again, if only to scare the kiddies.
  19. Uncle Grumpy

    The shape of things to come....

    Oh I'm not surprised, just lamenting. It's not about expecting 20 somethings working minimum wage jobs in modern bike shops to have any breadth of knowledge of older, and arguably irrelevant bike components, especially in a world where "standards" are trotted out every second Wednesday - it's...
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