Blur Seasonal Maintenance Instructions
(Recommended every 6-12 months, depending on riding frequency and conditions. Perform this procedure after the winter or if your bike is creaking/popping.)
Additional Details
Tools required:
- 4mm Allen Wrenches (2)
- 5mm Allen Wrenches (2)
- 6mm Allen Wrench
- Plastic Mallet
- Punch Set (maybe)
- 242 Loctite
- Rock and Roll Super Coat Grease
- Crank and BB Removal Tools
Step 1: Read the Instructions!
It's the right thing to do, so just go ahead and do it. Understand what you are about to encounter. Remove rear wheel, crankset, and BB (only if you have an external bearing bb) from the frame.
Clean off the major dirt so you don't contaminate grease or Loctite later on.
Step 2: Remove the Shock
- Grab your 4mm allen wrenches. Turn counterclockwise until one of the bolts comes out. Re-install the removed bolt 5-6 threads without it's washer, and tap it until it bottoms on the frame. Remove this bolt, and continue tapping the shaft out using a punch, 6mm allen, or long M5 bolt. Place a rag between the front of your shock and the downtube to avoid scratching the paint. (Fig.1)
- Now you are going to do the same thing with the rear shock axle. Once you have removed one of the bolts, re-install it without its cap, and tap until it bottoms on the bearing. This will protect the pivot axle from damage if it is tight. Now tap the shaft all the way out with a long M6 bolt, punch, or 8mm allen. (Fig.1a)
Fig. 1
Fig. 1a
Step 3: Remove the Upper Link
- Squeeze the dropouts together and pull the seatstay ends off the upper link.
- Using the 4mm allen wrenches, remove a bolt and tap the shaft out just like you did on the shock shafts.
- Pull the upper link out, taking care not to lose the two "top hat" spacers
- Removing a New Style Ti link - As there is no upper shaft in the ti link, there is no need to remove the link. Skip this step.
- (Fig.2)
Fig. 2
Step 4: Remove the Lower Link
- Remove the lower link shafts using the same procedure as the other shafts. This will separate the front and rear triangles.
Step 5: Prep for Re-Assembly
- Clean the pivot axles and scrape off dried Loctite from the bolts. Coat all of the pivot axles with your Super Coat Grease, or another high quality, sticky, slick grease.
Step 6: Install the Upper Link
- Slide the greased upper link shaft into one of the upper link bearings, until it protrudes about 3mm past the bearing. Place one of the top link washers onto this shaft with the smaller diameter side facing the bearing. Hold the other top hat on the other bearing, and hold it there while you wedge the upper link in between the washers.
- ( Fig. 3 )
Fig. 3
- Tap the shaft through the upper link- make sure the link and both of the top hats are aligned before tapping too hard. Apply Loctite 242 to the bolt and torque to 90 in/lbs.
- ( Fig. 4 )
Fig. 4
Step 7: Assemble the Lower Pivot
- Install the lower link into the swingarm, and slide a greased pivot axle through.
- Apply Loctite 242 to the bolt, and tighten to 115 in/lbs.
- Repeat to install the lower link to the front triangle.
- Once the bolts are properly torqued, check the bearings for smooth operation and side-side play.
- ( Fig. 6 )
Fig. 6
Step 8: Install the Shock
- Squeeze the dropouts together and slide the seatstay ends over the upper link.
- Tap the greased rear shock axle through the bearings, link, and rear shock eyelet.
- Apply Loctite 242 to the bolt, and torque to 95 in/lbs.
- Check for smooth operation of the pivots and shock bushings. Ensure that the shock reducers are not rotating on the shock axle- the shock should be rotating on the reducers.
- Grease the front shock axle, and install it in the front of the shock. Apply Loctite 242 to the bolt and torque to 90 in/lbs.
- ( Fig. 7)
Fig. 7
Step 9: Check Pivot Axles for Proper Function
- There is a possibility that your pivot axles may be a little too long for your slightly worn links. This is a test to make sure your axles are short enough to properly clamp everything.
- Make sure all the bolts are torqued to spec. using two allen wrenches (one on each side).
- Take one allen wrench and try to turn each of the pivot axles and shock axles clockwise.
- If any of these axles spin, tighten the bolts more and try again. If you have an axle where the bolts are very tight, but the axle spins when turned, the bolts are bottomed out on the ends of the axle.
- Remove any spinning pivot axles and shorten 1-2mm using a file or grinder. Install and re-test.
Extra: Changing the Dropout
- Remove the two bolts using a fresh 6mm allen wrench. These are ti bolts; don't use your worked over 10 year old wrench!
- Once the bolts are removed, tap the dropout off towards the back of the bike.
- To install the new dropout, apply Loctite 242 to the bolts and interface between frame and dropout. This Loctite will eliminate any creaking or movement.
- Torque bolts to 110 in/lbs.
- ( Fig. 8 )
Fig. 8