Test and Reviews

This is the building process of a Xray XB8 with all pro's and con's found.

Click on the pictures to enlarge

STEP 11

picsstep11-001.jpg (57482 bytes) Take bag 11.1and open it.
picsstep11-002.jpg (47600 bytes) The kit comes with multiple size molded shock pistons.
They have straight and conical holes.
At this moment of writing Xray has modified the shock pistons to be stronger and made them in white color for more information click here.
So your kit might have white colored pistons instead that are harder to break when shock absorber down travel is set incorrectly
picsstep11-003.jpg (38106 bytes) Differentiation between straight and conical holes is done by the extra dot molded in the piston.
Take of the plastic burs at the edge of the pistons.
picsstep11-004.jpg (39512 bytes) Equip the 3.5 mm shock shaft with a 2.5 mm washer.
picsstep11-006.jpg (34072 bytes) Fit the 1.5 mm straight piston as shown.
picsstep11-005.jpg (34749 bytes) Fit by hand force the 3 mm lock nut.
picsstep11-007.jpg (39086 bytes) Take the kit supplied wrench and a small pliers and place the pliers only on the thread at the end of the shock shaft.
Tighten the 3 mm lock nut.
If you are afraid to damage the thread use a piece of cloth in between the brackets of the pliers.
Never use any type of tool at the smooth surface of the shock shaft!
picsstep11-008.jpg (37324 bytes) The hard coated shock body needs to be equipped with the shown parts from left to right.
correct order is 3.5 mm Silicone O-ring -plastic washer - 3.5 mm Silicone O-ring - plastic washer -retainer clip.
Before placing the parts fit a drop of silicon oil in the bottom part of the shock body so the parts will slide in smoothly.
picsstep11-009.jpg (34092 bytes) The parts mounted in the bottom of the shock body except the retaining clip.
Make sure the parts are pressed fully inwards.
picsstep11-010.jpg (34820 bytes) Place the retaining clip with the open end at first in the groove of the shock body as shown.
With the tip of the 2 mm hexagon toll press the retaining clip inside the groove of the shock body.
Take care that the retaining clip might jump away so press a finger on the retaining clip while pushing the bended end inwards.
There is a spare retaining clip in bag 13.0!!!
picsstep11-011.jpg (34641 bytes) The retaining clip correctly mounted in the groove of the shock body.
picsstep11-012.jpg (37349 bytes) Place the shock body gently through the bottom of the shock body.
picsstep11-013.jpg (38166 bytes) Place by hand force the shock ball end
picsstep11-014.jpg (38682 bytes) Take a 4 way mini wrench and use the 3 mm part to fit on the 3 mm lock nut at the top of the shock shaft.
picsstep11-015.jpg (37902 bytes) Turn by using a 2 mm hexagon tool the shock ball end on the shafts thread.
picsstep11-016.jpg (36175 bytes) Do this exactly to the point where the thread stops and goes further in the smooth surface
picsstep11-017.jpg (36350 bytes) Extract the shock shaft and feel for free motion.
picsstep11-018.jpg (40475 bytes) The shock cap is build from three parts.
Watch the red marked spots that should match when mounted.
picsstep11-019.jpg (35658 bytes) Slide the black plastic shock cap into the aluminum nut and align the notch and the hole.
Then fit the black silicone bladder fully into the inside of the shock cap with the round side pointing outwards.
picsstep11-020.jpg (44898 bytes) Take two rims and place the shock body in the center of it.
picsstep11-021.jpg (47181 bytes) The kit comes with 350 W silicone oil to be used for front and rear shocks.
It is enough to fill 4 shocks.
If this W rating is the same as the rating used by Kyosho or Mugen Cps we do not know yet.
Xray cant confirm this either!!
If you are no sure about the viscosity of other manufacturers stay with the shock oil of one company.
picsstep11-022.jpg (48025 bytes) Fill the shock just 1 mm under the edge of the shock body.
picsstep11-023.jpg (44794 bytes) Slowly move the shock shaft up and down to release the air bubbles from the oil.
Move your head away while slowly moving the shock shaft up and down.
picsstep11-033.jpg (42573 bytes) If there are still air bubbles let them rise to the surface by placing the shock body for a while on the two stapled rims.
picsstep11-023.jpg (44794 bytes) After a few minutes check for air bubbles by slowly moving the shock shaft up and down.
picsstep11-024.jpg (39069 bytes) If there are still air bubbles let them rise again to the surface.
Make sure the shock oil level is just 1 mm under the edge.
picsstep11-025.jpg (43192 bytes) Place the assembled shock cap on the thread and turn it until the bleeding hole is level with the shock body thread.
picsstep11-026.jpg (47134 bytes) Take a piece of old clothing or paper towel and place it around the shock body.
Press the shock shaft slowly fully inwards.
Now tight the shock cap fully by hand force only.
Excessive oil will leave the bleeding hole and that is correct..
picsstep11-027.jpg (43415 bytes) Slowly move the shock shaft up and down to check the working of the shock absorber.
When releasing the shock shaft after pushing it in it should not rebound more as the picture shows.
If it does the shock is not correctly assembled and filled.
Recheck the above mentioned steps again.
picsstep11-028.jpg (37225 bytes) Slide the cover boot over the shock shaft.
The shock boot has already a small hole inside to compensate for the air inside.
picsstep11-030.jpg (39022 bytes) Slide the top ring on the shock body.
picsstep11-031.jpg (44227 bytes) Slide the spring on the shock body.
Bag 13 also contains dark blue colored springs with firmer rating that can be mounted.
We opted for the manual suggested spring light blue springs.
Click here to see the value of these springs.
picsstep11-032.jpg (45626 bytes) Extend the shock shaft and compress the spring and slide the bottom spring retainer on the shock ball end.
Release the shock and check for correct fitting.
picsstep11-034.jpg (50022 bytes) Do same steps for the other front shock absorber.
The two front shock absorbers ready.
picsstep11-036.jpg (64764 bytes) Take bag 11.2 and open it.
Perform the same steps as with the front shocks.
We missed 1 silicone O-ring for the complete the rear shock in the bag.
We received a replacement O-ring from The Border online
picsstep11-035.jpg (56177 bytes) The four shock absorbers ready to mount.
picsstep11-029.jpg (56357 bytes) The ride height clips that we are using in a later stage to be mounted.
Nice the shock have 3.5 mm shafts and the shock bodies are hard coated.
The bleeding hole makes it easy to assemble 4 shocks with same zero rebound characteristics.
Shame we missed one O-ring in the bag for the rear shock absorber.

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