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Posted on Feb 20, 2010
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Suspension fork issue

16'' boys streetfox dual suspension bike purchased from toys r us a few years back. Front forks starting to squeek and not moving smoothly or rebounding. Any thoughts? .

1 Answer

John Egan

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  • Expert 85 Answers
  • Posted on Mar 24, 2010
John Egan
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Joined: Apr 29, 2009
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You probably need new seals, sounds like they need a overhaul too.

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0helpful
1answer

Bike squeeks from front suspension

put a couple drops of oil on the stanchion tubes of the shock forks where they seals connect with the sliders and see if that helps. It is possible that inside the fork it has dried out and the spring needs some grease where it seats inside of the fork.
0helpful
1answer

Mongoose mozo m30 forks are sponggy

Change the spring to your load.

Adjust Mozo M30 Fork Suspension - Beckman Du-70 Forum

efratoium.xyz/Adjust-Mozo-m30-fork-suspension/
Results 1 - 15 of 15 - Mongoose XR 150 mozo m30 front forks rebuild. A quick ...Mongoose mozo m30 forks are sponggy on my XR150 mongoose mountain bike.

mozo??- Mtbr.com

forums.mtbr.com/shocks-suspension/mozo-167281.html

Feb 20, 2006 - 15 posts - ‎6 authors
... of a mozo m30? is it the junk im assuming came on my mongoose? ... into a halfway decent bike. and all i can get off the fork is mozo m30 ...

Mongoose XR250 Suspension Upgrades ' Bicycling Magazine Forums

forums.bicycling.com/topic/54635607127666779
1helpful
1answer

Ive got a gl1100 1982 with air front suspension q-what is the best way to change the front fork to a convensional spring fork and what forks would be the best ?

Hello and thanks for the question,
Your 1982 GL1100 has air assist type of suspension. It has springs in the front as well as the air pressure. This is a heavy bike and the front forks are marginal at best. I have had great results from installing progressive suspension springs and moving up to a heavier fork oil (20wt ) to keep the bike from diving so far during braking.

www.progressivesuspension.com

You should look at having the forks rebuilt with these parts and you will find that the bike handles much better than before.
The springs that are in the bike are old now and should be updated with new style parts.

Thanks and I hope that this helps.
Steve
1helpful
1answer

What's a "hardtail"? What's "full suspension"?

A "hardtail" is a mountain bike that has a front suspension fork (like the one on the right) and no shock absorber in the back. Good hardtails are light, fast and responsive, and because of this they are good for climbing.
Even the cheapest mountain bikes these days tend to have suspension forks. That's not necessarily a good thing, since most of the forks on cheap bikes are of poor quality and will probably need replacing before too long. The cheapest forks also tend to be sold only on new bikes, and not separately. Find out the make and model of the fork, and search around on the web for it. The price will give you an indication of the fork quality.
Most decent bikes are sold with Rock Shox, Manitou, or Marzocchi. Marzocchi has been making forks longer than anyone and has probably the best reputation, but they tend to be expensive so you won't find them on anything but expensive bikes. Rock Shox and Manitou make lower-end (but reasonably good) forks. Other reputable brands such as Fox and Suntour make forks that may very well provide a good service life, but are not as well known for mountain bike forks. Replacement forks can be found at very low prices during sales and clearance events, so they can be upgraded later (sometimes at a bargain price). A "full suspension" bike has the front suspension fork and a rear suspension (like the bike on the right). These are highly recommended if you ride in a lot of rocks, as the rear suspension allows you to glide over rough terrain. They're also good for big jumps. The rear shock adds some complexity to the bike, and a good bit more weight at any give price point, plus there'll be a bit more maintenance. Plus, you'll pay a few hundred dollars more than a hardtail for a bike of otherwise equal components. Depending on your terrain, it might be worth it; riding a hardtail in big rocks can be brutal.
Dec 16, 2010 • Cycling
1helpful
1answer

Do you think that MOTOBIKE mobils can be a perfect lubricant for MOUNTAINBIKE SUSPENSION FORKS??

You can use the same lubricants as long as they match the specifications for your Mountain bike fork. Each manufacture of fork will provide a list of recommended weights and types for the specific fork model.

In general the mountain bike will use a much lighter weight lubricant and the heat resisitance needs are far less. So in general the Motorbike suspension fluids will be too heavy.

The Fork that is pictured in the bike represented will not work well with Motorbike oils but if you have a different fork it might.
0helpful
1answer

My bicycle has a suspension problem......... my front suspension fork is so hard...... it works very often............ please help

I hate to tell you this, but the forks on the bike you have do not have any adjustment available. Forks with Adjustments and the ability to disassemble to be able to "tune" the ride start in around $250- for the fork. As you ride, the mechanism inside your fork should break-in and give you more shock absorbtion and become easier to engage.

Other than replacement, there is no direct solution for your fork.
0helpful
1answer

Can i stiffen up the tension in my front forks on my mgx dxr?

Sorry to inform you, but there is no adjustments available for the forks that come with your bike. Adjustable forks (just the fork) start in around $250-.

On the positive side since there is not adjustment capability the fork does not need regular servicing like the adjustable forks.
1helpful
1answer

Adjusting front fork rebound damping screw

It sounds like your forks need servicing by a professional. Your instincts were right, they should be about equal length, so something BAD has happened to one of the forks. I would recommend going to a sport bike speed shop that specializes in suspension work to have this fixed since the guys at HD barely know how to change the spark plugs on a Buell in most cases.

A good shop can not only repair the damage, but help you to set the suspension exactly right for you (the Buell manual is just a ballpark setting) by checking the sag in the suspension, and they can even upgrrade your forks and shocks for you.

Arguably the best in the business is Max at traxxion dynamics. They have drop in cartridges that allow the showa forks to come close to the Ohlins used by the pros. Not that the showas are bad, In fact Buell always put decent factory suspension on their bikes, which is why it's repairable, instead of needing to replace it.
0helpful
1answer

WHAT SHOULD COMPRESSION BE FOR 04 KXF 250

Engine: Four-stroke single cylinder with DOHC, four valves
Displacement: 249cc
Bore x stroke: 77.0 x 53.6
Cooling: Liquid
Carburetion: Keihin FCR37 with hot start circuit
Ignition: Digital AC-CDI
Transmission: Five-speed with wet multi-disc manual clutch
Frame: Perimeter style, high-tensile steel with D-section upper frame rails
Suspension type, front: 48mm inverted, cartridge-type telescopic fork
Suspension adjustments, front: 16-way compression and rebound damping
Suspension type, rear: UNI-TRAK single shock system
Suspension adjustments rear: 16-way compression and rebound damping, spring preload
Wheel travel, front: 11.8 in.
Wheel travel, rear: 12.2 in.
Tire, front: 80/100-21 51M
Tire, rear: 100/90-19 57M
Brakes, front / rear: Single semi-floating 250mm disc, dual-piston / single 240mm disc, single-piston
Compression Ration: 12.6:1 ***********************
Rake/Trail: 26.5 degress/110mm
Overall length: 85.4"
Overall width: 33"
Overall height: 50"
Ground clearance: 13.4"
Seat height: 37.4"
Dry weight: 204 pounds
Wheelbase: 58"
Fuel capacity: 2.0 gal.
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