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I have a niskiki bushwacker with these number on bottom of crank GJO 0567 and need new bearning on the main sprocket pedal sprocket can you help

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  • Cycling Master
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There's no such thing as a "pedal sprocket" so there's not an accurate way to advise you, but most likely you're talking about bottom bracket (crank) bearings. Specialized tools and proper technique are necessary to replace them, and the bike may only need adjustment. The parts and tools are universal, not specific to a particular brand/model.
I would strongly agree with the advice to go to a bike shop. If you have one in your city a bike co-op can help you also, and can assist with tools and knowledge if you want to fix it yourself. If you purchased the bike new and fairly recently it's best to return the shop that sold it to you.
Meanwhile, here's a link to a diagrams of bicycle parts. It will be easier for you to communicate when you know the proper terminology.


http://www.performancebike.com/webapp/wcs/stores/servlet/Content_10052_10551_-1_BikeGlossary

Posted on Jan 03, 2017

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  • Master
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No try your local bike shop

Posted on Jan 03, 2017

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1 Answer

How do I Adjust the bearings crank ? (bottom bracket axle)


It is according to what your crank design is.
1st. design. This is a solid crank. Look at your crank. One side will have a nut, and a race with slots in it. If this is yours then you take off the pedal on the side of the nut. Now take off the nut, use a screwdriver to remove the race. Pull that bearing out, then push the crank through the opening, removing the other bearing. If you have a multiple speed bike you have to remove the sprockets first.

2nd design. After removing the sprockets there is a bolt holding the crank arms on the shaft that the bearing are on. Remove the cranks and then remove the bearings the same as above.

Mar 25, 2015 | Mongoose Cycling

Tip

How to Remove and Replace the Bottom Bracket on an Indoor Cycling Bike


Following is a basic guideline of removing and replacing the bottom bracket on an indoor cycling bike. Due to the different brands of indoor cycling bikes and designs for bottom brackets, the following should only be used as a guideline. If any of the information is not exact to the bike being serviced, refer to the service manual or call Sportsmith for further help.
Common Tools Needed:
Phillips Screw Driver
Set of Allen Wrenches (standard and metric)
Bottom Bracket Tool
Cotterless Crank Puller Tool
9/16" Socket
Ratchet Wrench
Pedal Wrench
Crescent Wrench
You will begin by removing the outside belt/chain guard by using either or both the Phillips screw driver and Allen wrenches. It may be necessary to remove the drive side pedal (using the pedal wrench) in order to completely remove the outside belt/chain guard.
Once the belt/chain guard is removed, you will need to remove the belt/chain. If the unit is belt driven, you can simply "walk" the belt off the pulley by pushing the belt to the outside while turning the crank backwards. **CAUTION: PINCH POINT ** If the unit is chain driven, most use a continuous chain that can be "walked" off the sprocket just like the belt. **CAUTION: PINCH POINT ** Some chains may use a connecting link and can be separated at the connecting link to remove the chain. The connecting link is different in appearance from all other chain links.
Now it is time to remove the crank arms. How to Use a Cotterless Crank Puller Tool
It works best to place the bike upside down for best leverage to remove the bottom bracket. (If placing the bike upside down, ensure proper seat adjustment for best bike balance.) Begin removing the bottom bracket from the drive side of the bike. This side has a reverse thread. You will need to turn right to loosen and remove the bottom bracket. Place the teeth of the bottom bracket tool into the teeth of the bottom bracket cup. Using the ratchet wrench or crescent wrench to turn the bottom bracket tool, you will turn right to loosen and remove the bottom bracket. (If removal of the bottom bracket is difficult, it helps to use a crescent wrench in combination with a bolt threaded into the bottom bracket shaft to hold the tool in place while applying pressure to break the bottom bracket loose.) Remove the bottom bracket from the frame. Remove the bottom bracket cup and/or lock ring from the non-drive side of the bike. This is a standard thread. You will turn left to loosen and remove this bottom bracket cup and/or lock ring.
Install the new bottom bracket from the drive side and tighten flush to the frame. Install the bottom bracket cup and/or lock ring to the non-drive side and tighten.
Re-install the crank arms and pedals. Make sure the crank arm bolts are tightened to the proper torque. If unsure of proper torque specs, refer to the equipment service manual or call Sportsmith.
Re-install the belt/chain onto the pulley/sprocket. If belt/chain was "walked" off the pulley for removal, it can be "walked" onto the pulley/sprocket by placing the belt or chain along the bottom of the pulley/sprocket. Carefully, turn the crank arm forward while lifting on the belt/chain. **CAUTION: PINCH POINT ** Continuing turning the crank forward until the belt/chain is in place.
Re-install the outside chain guard and test the unit. Ride the bike without tension and test with tension. Ensure functionality and feel of the ride. Make any adjustments if necessary


Removing and Replacing Bottom Bracket on Indoor Cycling Bike

on Mar 11, 2015 | Exercise & Fitness

1 Answer

I need to change the rear gear sprocket, but don't know what speed the mountain bike is. How can I tell what speed the bike is.


Count the cogs, duh. You're going to need some help even after you know if it's 6-, 7-, 8, 9- or 10-speed in the rear. Special tools and 'how-to' knowledge. Take it to a Bicycle Shop an experienced DIY cycling friend.

http://www.parktool.com/blog/repair-help/categories/cassette-and-freewheel-service

Sep 01, 2011 | Cycling

2 Answers

The pedals will turn but the wheel does not


The rear set of gears, called the "Freewheel" are shot, and need to be replaced. You can find another wheel, but this will probably prove to be difficult, or you can pay for a new freewheel or your bike shop may give you an old one for a discount.
Good luck
Joe

Aug 29, 2011 | Cycling

1 Answer

I don't understand how to shift my 12-speed Adventurer bicycle and am looking for online manual or some help. The right-hand shifter has numbers 1-6, but I don't seem to know how to match it up...


It sounds like you have 2 sprockets on the Front (Crank) sprocket-
and likely 6 sprockets on the rear?

So-- when you have the chain in the smaller diameter sprocket on the front, and you have the chain on the biggest sprocket in the rear-- you have the most mechanical advantage-- and you can climb hills the best-

If you started in this gear, (sand you are pedaling on the level road) you could gradually work you way up thru those 6 sprockets-- until you are cruising-

Then -- for all practical purposes, you can shift the Front sprocket to the larger sprocket, and now you have at the fastest ratio possible. (In other words you pedal slower, for a faster rotation of the rear wheel-- make sense?)

There is no need to switch back and forth 12 times, as you go gradually faster-- (It is not like driving a big truck! :-)

Does this help?-- if not, let me know what I missed in your question?

Mack B

Jul 04, 2011 | Cycling

1 Answer

Right side pedal is "wallered


That would depend on the brand and design. A sprocket is literally a gear. A crankset is the combination of the crankarms and mounted gears. Bottom brackets join them within the frame.

http://en.wikipedia.org/wiki/Crankset

http://www.sheldonbrown.com/brandt/stuck-pedals.html

Pedals are replaceable.

A Bicycle Shop could help you decide what you need and select the proper size(s).

Mar 30, 2011 | Cycling

1 Answer

Front crank sprocket clicking on bycycle, when I pedal the front crank sprocket clicks, it isn't the pedals.


make sure all sprocket bolts are tight.
check chain to make sure you have all rollers between links are there.this can make a clicking noise or skip teeth if one is missing when you pedal.
if you feel clicking in the pedals (even if you think it isnt the pedals),then it could be your bottom bracket bearing gone.
put one pedal towards the floor and stand on it.did it click?then try the other pedal.if you got it to click then your bottom bracket is loose

Sep 13, 2010 | Cycling

1 Answer

Hi trying to re grease the pedal sprocket bearings on my Ross Rock Machine mountain bike. I got off the pedal arm on the right side but can't figure out how the left side comes off. The pedal arm looks...


Bottom brackets are sealed, removing the seal will have potential for damage. If it's making noise, replace it or better yet upgrade as a crankset. You'll have new crankarms, bottom bracket, chainrings with it. Unless you have the correct bicycle tools (not general automotive tools) you won't be able to pull your crank and even reach the seal for the bottom bracket. Click here for tools you need to do the job.

Jul 03, 2010 | Ross Rock Machine Aluminum Mountain Bike

1 Answer

My son just bought a 26" Huffy Jolt mountain bike. The rear sprockets spin freely when the pedals are cranked either forward or backward - - that is, there is no coupling to the rear wheel. What can I...


The plastic is to stop the chain from touching the spokes, it cannot cause this problem, either the chain is not on a sprocket correctly or the rear cluster(sprockets) is not working.
Some spray lube may help, but if it is new, take it back to the shop.

Apr 18, 2010 | Huffy Mens Mountain Bike - Crimson Red

2 Answers

I want to replace the main sprocket with a bigger


you need to pull the pedal off on the side that the crank is on the pedal will thread off like a bolt but the threads are reverse on the pedal once you have the pedal off you will have to unscrew the two nuts that hold the crank in the frame of the bike the inner nut is easiest to get off with a flathead screw driver once you have those two out you can pull the crank out of the frame and then you may want to put it in a vice because the crank will turn off the pedal unit but you usually have to pry up on the crank a little to get the alignment pin out of the crank enough to turn it

Jun 08, 2009 | Schwinn Meridian Adult 26-Inch 3-Wheel...

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