5 天之前 · To remove sprockets, use one chain whip to unscrew the smallest sprocket (counterclockwise), and another hold the freewheel so that it doesn't spin backward while you unscrew that sprocket. On most freewheels, two or three outer sprockets are threaded, and unscrew. The inner ones are splined and lift off once you have replaced the threaded ...

4 天之前 · To remove a rear bike wheel with hub gears, you will need to first remove the brake pads. Next, loosen the axle nuts or quick release skewer. Finally, pull the wheel out from between the frame dropouts.

5 天之前 · Most newer single-speed coaster brakes use the same 3-splined sprockets as are used on internal-gear hubs. Such sprockets are available in sizes from 14-24 teeth. Changing the sprocket to customize the gearing is often very worthwhile. These sprockets are held on by a snap ring, which you can pry off with a small flat-blade screwdriver.

4 天之前 · Chainline may be adjusted at the rear wheel by rearranging spacers on the rear axle, and with a steel frame, also by re-spacing the rear dropouts. Adjustable hubs use conventional threaded axles, so you can increase the OLD spacing by removing the locknuts and adding spacer washers, and replace the axle as needed.

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6 天之前 · When the rear aluminum pully wears that spreads the pitch (distance) between the teeth in the sprocket. The belt then tries to follow the new dimension and generally starts to crack the belt in the valley between the teeth.

5 天之前 · Usually, gear shifters are used to change the ratio between the number of teeth on the front and rear sprockets, allowing the cyclist to select the most suitable gear for the terrain, the speed they are traveling, and the amount of effort they wish to exert.

5 天之前 · I believe the stock 530 chain is a 92L (including master) and sprockets are 40/15 on the RD250/RD350 (you didn't state which bike you have). If you're changing ratios or piecing together your own kit just follow jspooner's advice and get a longer chain and a tool. The tool will pay for itself in the future.

2 天之前 · Know the purpose of a bike chain sprocket in power transmission, performance tuning, and fuel efficiency. ... Rear Sprocket or Driven Sprocket: ... on the chain, thus accelerating wear and making a complete chain failure more probable. Therefore, it is important to replace the sprockets at the same time as the chain for optimal performance. 5 ...

6 天之前 · UPDATE: I ended up using a Martin 10T sprocket instead (50BS10HT-1), which is a wicked torque beast. If you're changing both sprockets you may want to use 530 chain, especially for the higher-powered Zeros. You won't need to machine the front sprocket, and the rear will be the same except for tooth width.