Xterra sb4.5r fitness bike makes a klunking noise when pedaling

Question edited for clarity, full make model (what it is), and wrong type of peddle (drugs) / pedal (a bike).
Question moved from Cars and Trucks to Exercise Bike category.

That noise is normally caused by adjustable bearings that need tightening up. There is help in the link.

https://www.google.com/search?q=bike+body+champ+clunking+noise

..

Posted to Sewing Machines category?

'bike'? Motorcycle, Pedal Bicycle, Electric?

'high tension', as in spark plug sparks? Sewing machine tension, sewing machine fitted to a bike?

but 'lube this bike'? A can of 3 in 1 Oil?

Tto get good answers, you have to ask good questions, and must include full

make model (what it is)

..

Rob, check the links.
Parts for Life Fitness Bikes Pedals Battery Pedal Straps SPORTSMITH net

VP Exercise Bike Replacement Pedals 1 2 Stationary Bicycle Pedal Set with...

Exercise Bike Pedals

Pedal Assembly for all exercise bikes

This bike looks to be of the Lemond Revmaster series.

first, dial the resistance knob back until the leather break pad is no longer touching the flywheel. Get down on the floor and postion yourself between the flywheel and pedal cranks. Slowly turn the cranks arms and listen and feel for a roughness in the bike.

This has bike has bearings and a belt. It should not make any noise.



Now with the right pedal at a 2:00 position tighten the resistance knob down all the way so the flywheel will not turn. Then get on and push very hard on the right pedal. If the belt is loose, the pedal will move. Austin Fitness Rentals Rent Commercial grade Fitness Equipment in... ">

need new pedals, they screw off and one if left hand thread and one is right hand thread. or
unscrew both over the top to the rear.

all pedal will fit this bike go to a bike shop

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

You can find pedal straps on our Website by using the following link. Search Results for pedal straps SPORTSMITH net

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

Most of the time you can find an aftermarket pedal that will fit your bike. The important part is the size of the pedal shaft. Most commonly they are either 9/16" or 1/2". I will post a link to a video on how to measure the pedal shaft diameter as well as a link to some possible replacement pedals.

Identifiying the Proper Size Pedal for Your Bike

Pedals for Exercise Equipment Bikes Ellipticals Steppers SPD 1 2 9 16...

There are most likely some sort of bearings inside the wheel hub that are causing this.