Radius Bicycle User Manual (English)

Questions and Answers:

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jamesarnoldAug 13, 2025
Why are my Radius brakes not working correctly?
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  Daniel BlackAug 13, 2025
  Your Radius Bicycle brakes might not be working due to several reasons. The brake blocks could be worn down and need replacement, or they might be greasy, wet, or dirty, requiring cleaning of both the blocks and the rim. Alternatively, the brake cables may be binding, stretched, or damaged, in which case you should clean, adjust, or replace them. The brake levers could also be binding and need adjustment, or the brakes might be out of adjustment, requiring centering.
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Eric BallardAug 16, 2025
What to do if my Radius Bicycle has frequent punctures?
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  Olivia PhillipsAug 16, 2025
  If you are experiencing frequent punctures on your Radius Bicycle, consider these potential causes: the inner tube might be old or faulty, necessitating a replacement. The tyre tread or casing could be worn, indicating the need for a new tyre. It's also possible that the tyre is incompatible with the rim, requiring a replacement with the correct tyre. Ensure that the tyre is checked for any sharp objects after a previous puncture and remove them. Finally, check that the tyre pressure is at the correct level.
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Kari DuranAug 20, 2025
How to fix a slipping chain on a Radius ?
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  Laura HancockAug 20, 2025
  A slipping chain on your Radius Bicycle can be caused by several factors. The chainring or freewheel sprocket teeth might be excessively worn or chipped, requiring replacement of the chainring, sprockets, and chain. Alternatively, the chain itself could be worn or stretched, necessitating its replacement. A stiff link in the chain may also be the culprit, which can be resolved by oiling or replacing the link. If the chain, chainring, and freewheel are not compatible, consult a professional bicycle mechanic.
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Jeffrey Tanner MDAug 25, 2025
What to do if my Radius Bicycle wheel is wobbling?
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  christopher85Aug 25, 2025
  A wobbling wheel on your Radius Bicycle could be due to a few reasons. The axle might be broken, requiring replacement. The wheel could be out of true and needs truing. Loose hub cones could also be the cause, and you should tighten the hub bearings. Headset bindings may also lead to a wobbling wheel, so you should alter the headset. Finally, collapsed hub bearings can cause this issue, and you'll need to replace the bearings.
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mccoyjoshuaAug 27, 2025
Why does my Radius make constant clicking noises when pedalling?
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  Michael BrownAug 28, 2025
  Constant clicking noises when pedalling your Radius Bicycle can arise from several issues: a stiff chain link, which can be resolved by oiling the chain; loose pedal axle or bearings, requiring adjustment of the bearings or axle nut; a loose bottom bracket or bearings, necessitating adjustment of the bottom bracket; a bent bottom bracket or pedal axle, indicating the need to replace the bottom bracket or pedals; or a loose crankset, which can be fixed by tightening the crank bolts.
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Justin CharlesAug 31, 2025
How to fix squealing brakes on Radius Bicycle?
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  vmitchellSep 1, 2025
  If your Radius Bicycle brakes squeal when applied, it could be due to several reasons: worn brake blocks, which should be replaced; greasy, wet, or dirty brake blocks or rim, requiring cleaning; incorrect brake block toe-in, which needs correction; or loose brake arms, which require securing the mounting bolts.
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Matthew JacksonSep 4, 2025
What causes knocking when brakes are applied on a Radius Bicycle?
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  Samantha WrightSep 5, 2025
  Knocking or shuddering when you apply the brakes on your Radius Bicycle might be caused by: a bulge in the rim or a rim that is out of true, consider truing the wheel or consult a bike mechanic; loose brake mounting bolts, make sure to secure them; brakes out of adjustment, center the brakes and/or adjust the brake block toe-in; or forks loose in the head tube, you should secure the headset.
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Timothy RodriguezSep 8, 2025
Why does my Radius make a grinding noise when pedalling?
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  courtney16Sep 8, 2025
  A grinding noise when pedalling your Radius Bicycle may be due to the chain jumping off the chainwheel sprocket or chainring, in which case you should adjust the chain line. Another cause could be a freewheel that does not freewheel, requiring lubrication or, if the problem persists, replacement. Incorrect gear shifting might also be the reason, so you should alter the derailleurs. Steering inaccuracy can also lead to grinding noises, so align the wheels correctly. Finally, knocking from the rear end of a suspension model may necessitate consulting a professional bicycle mechanic for frame realignment, repair, or replacement.