I have a Giant Escape hybrid bike, which I bought as a secondhand bicycle. After I had bought it, once in every 500km, according to Strava records, I am always having a broken spoke in rear wheel. Yesterday, I got my sixth broken spoke and I have noticed the old spokes broken always, not the ones I had replaced.
I asked from a few repair persons but they just replaced the spoke without reasoning. Is there anything I can do to stop this? Because I think this is strange.
As you can see in this picture most of the broken spokes are on drive side. As I remember I heard sound of breaking when I tried to speed up quickly.
Most of the time the spokes break at the J Bend, not the nipple/rim. They all broke in the rear wheel, none in the front wheel. Most are on the drive side, and few are on the non-drive side.
I am more or less 85kg (187 pounds) who commutes 8km/5miles up and down (16km/10 miles daily) with, most probably, 2kg (4.4 pound/ 4lb7oz) bag. While riding I have to go on concrete roads, uneven terrain, for about 2km/2200 yards. Moreover, I used to ride more than 50km/31 miles on weekends.