grinding noise

  1. Z

    Help! Loud vibrating rear hub motor after putting it under load while stationary.

    Hello all, this is my first post on this forum, I'm excited to join this friendly and welcoming community! A friend of mine sold me an eBike with the a 36v Voilamart 500W rear (Brushless Gearless) motor. It is around 3 years old and had been running fine with me over the last few days of having...
  2. Bovinelufe

    Help! Noisy Mxus 48v 500w on Mate Icon

    Hello good people. First post. I have a new Mate Icon 500w. I road tested the X and it was great but too heavy to fold. I am partly disabled. I was delighted to have gotten one of the last Mate 500 City / Icon and it is the ideal weight and power for me. A 250w motor is not enough. so far so...
  3. K

    Help! Freehub noise while coasting/back pedalling

    Hi all, new to the site. I have had a Violamart converted e-bike for 1.5 years now, I use the bike for courier work. Over the past week a weird rattling/scraping type of noise has been happening when i'm coasting or back pedalling - I've never had this issue before. It gets louder the faster you...
  4. 01wellsd

    Wisper Brand New Wisper 705se Grinding Brakes

    Hi All, I have recently taken delivery of a Wisper 705se. I have covered about 170 miles on the bike and the front brakes have been making a horrible grinding noise and vibration since about 100 miles. I first thought that it might have picked up a stone. But I stripped, cleaned and reassembled...
  5. Frogprints

    Bafang BBS02 grinding!

    My Bafang assisted Dahon is only a few months old and used for only about 500 miles so far. A short while ago I detected a grinding through the left pedal, initially I thought pedal bearing but after replacing the pedals -no change. I have stripped the motor down and cannot detect any...
  6. Bearing Man

    Hi from the Bearing Man

    As a relative newbie on this site, I thought I would introduce myself properly and say a bit about what I do and why I did it! A few months ago I had a crankshaft bearing fail on my Bosch motor. No problem I thought, as it's out of warranty, I'll strip it down and buy a new bearing. Turned out...