[TNash1757]

I am not getting the full travel from my Boxxer Team. I have a soft spring in and even with the compression off the fork feels like it bottoms out about an inch and a half before it should. Anyone know how I could fix this?

 

[Shepherdwong]

How much do you weigh?

 

[TNash1757]

a little under 150lbs

 

[Shepherdwong]

I weigh 190 and run a soft with 2 thin preload spacers. Depending on your riding style you may want to try an extra soft spring.

 

[Bicyclist]

No, he's talking about something else. I would call RS and ask. I know what you're talking about. It's like the fork totally locks up before it should bottom.

 

[PoserNewbie]

Why don't you try and take the spring off the left leg and compress the fork without the spring. If you're still not getting 8" of travel then there is something wrong inside the fork.

 

[Rye_Bread]

try taking some oil out. I unno about with MC but every model up to '06 would hydrolock if god hated you.

 

[TNash1757]

I took the spring out and fully compressed it. Where it stops there is 2 inches between the dust seal and the lower crown. It feels like it is stopped by something hard if that helps. I am only getting about 5 1/2 inches of travel before it hits this spot.

 

[Rye_Bread]

try taking some oil out. I unno about with MC but every model up to '06 would hydrolock if god hated you.

.....

 

[TNash1757]

removing oil had no effect...

 

[joelsman]

take your cartridges out and see whitch one is messed up, then lok to see if you can fix or send it to RS and check to see if your stanchions are bent

 

[Cave Dweller]

Air is trapped in the lowers. Talked about here before.

http://www.ridemonkey.com/forums/showthread.php?t=164185&highlight=boxxer+travel

 

[vitox]

Air is trapped in the lowers. Talked about here before.

http://www.ridemonkey.com/forums/showthread.php?t=164185&highlight=boxxer+travel

on the spring side? cant be the damper can it?

 

[Cave Dweller]

on the spring side? cant be the damper can it?

Both, the newer boxxers are a sealed cart, all the oil is contained in the upper legs, the lowers are just air and 30mls of oil for lube.

It seems when the boxxers are new the oil seals do a good job of keeping the air in. Some people have this issue, some don't.

 

[TNash1757]

thanks for all the help. I think the problem was that there was too much oil that had made its way into the lowers from the motion control. When I emptied the lowers I was able to get the fork to fully compress.

 

[Udi]

That wasn't WHY it solved your problem.

As Cave Dweller covered, the motion control damper is sealed inside the stanchion. If any oil leaked into the lowers the damper seals would have failed (as in, it can't happen otherwise). Also, because the damping oil is sealed, there needs to a seperate amount of oil in the lowers just for lubrication - so if you emptied the oil from the lowers, i'd suggest getting some back in there or you will accelerate bushing and seal wear. (15ml per leg is the required dose afaik).

The reason it let your fork compress fully after removing the lowers was because there must have been a fair amount of air buildup in the lowers, ramping up and stopping you from using full travel.

The general solution for this is to flip the fork upside down, undo the footnuts halfway, tap them with a mallet to break the seal and let air out, compress the fork to halfway or a little more, and retighten the bolts while holding it at that point.

Just thought i'd explain it properly in case someone else has the same problem.