cip1000

Most recent activity

• Worn GRX chainring after 2500km

  in Mechanics & Fixin' • 1 month, 2 weeks

  

  if it is slipping, it is going to be over the rear sprocket, not round the front chainring.

• Any ways to prevent rust from getting worse?

  in Mechanics & Fixin' • 2 months, 1 week

  

  Keep it indoors.

• Brake physics, front vs. front+rear???

  in Mechanics & Fixin' • 3 months

  

  In good conditions, rear brake doesn't do much. In wet, icy, slippery conditions, it is quite easy to cause a front wheel skid which is generally terminal. Recovering from a rear wheel skid is straightforward - some people even do it deliberately, for fun.

  Brake cables also snap, especially if they live outside, are old, galvanised, unloved, etc.

• Removing a rounded hex bolt with 3 mm head

  in Mechanics & Fixin' • 3 months

  

  Can you just cut through the bolt with a grinder and a steel cutting disk? Subsequently, hard maybe to get the bottom half of the bolt out of the stem, but fast and lots of sparks.

• Freewheels

  in Mechanics & Fixin' • 5 months, 1 week

  

  If you have a grinder and are a bit bored, you can cut open the old freewheel, liberate all the balls and achieve a deeper understanding of freewheel construction.

• Freewheels

  in Mechanics & Fixin' • 5 months, 2 weeks

  

  There are sealed freewheels (WI, token, profile) and unsealed ones (dicta, shimano, halo, acs, etc.) The unsealed ones will all die if used in crappy weather (~1-2 years commuting) crap gets inside and the ball bearings start to wear faster, it becomes loose or the pawls stop catching or similar. Adding oil can extend their lives a bit. The WI ones are great but a bit of a false economy as you can buy 10 dicta type freewheels for one WI one, and the WI casing is quite expensive compared to the cost of a new WI freewheel (and the last time I did that I found they now only sell the new casing with a new bearing).

  Get one that works with the standard 4 sprog removal tool.

• Conversion advice

  in Mechanics & Fixin' • 7 months, 1 week

  

  For gears , a derallieur (that bolts on to your hanger), cassette ((shimano) that has right number of gears for your hub), gear cable, gear outer, gear lever. You might want to get a bigger front chainring - it will be 110 or 130 bcd (probably). You could also add a front derallieur, chainrings, etc.

  For gearing up generally this might be what you're looking for https://www.youtube.com/watch?v=Vwn_UfG2­spc
  
  

• Bike Wars Paris

  in Social • 8 months, 1 week

  

  Again, again.

  http://lestendhal.net/evenements/bike-wa­rs-2019/

• Servicing a Halo Clickster Freewheel

  in Mechanics & Fixin' • 8 months, 2 weeks

  

  They are quite nicely made freewheels, and adding oil like in the video makes them last longer, but the fact they're not sealed and you're using it in crummy conditions means that it is inevitably going to die.

• Chain keeps loosening

  in Mechanics & Fixin' • 1 year

  

  You might want some "proper" track nuts (with captive washer).