Cane Creek Cycling Components | 355 Cane Creek Rd., Fletcher, NC 28732 | 800.234.2725 | [email protected] | canecreek.com
CHANGING ELASTOMER
1.
Using an 8 mm socket wrench and a 4 mm hex wrench, loosen the locknut completely.
2.
Push the saddle forward slightly to remove upper white, nylon washer and steel washer.
3.
Remove the skewer bolt, keeping the lower nylon washer and steel washer on the skewer.
4.
Push the saddle further forward to remove the elastomers and coupling washer.
5.
Select elastomers as required. When mixing different spring rate elastomers, the order does not matter.
6.
Grease the skewer bolt shaft and the top and bottom of each elastomer.
7.
Place the coupling washer between the elastomers and place them into the assembly.
8.
Insert the skewer bolt through the lowest elastomer and the coupling washer.
9.
Push the saddle rearward while pushing the skewer through the top elastomer and hole.
10. Re-install the nylon washer, steel washer and the locknut. DO NOT TIGHTEN.
11. Install the locknut so that one full thread is exposed beyond the locknut (figure 2). Additional tightening will add preload
to the assembly. (See page 2).
PRELOAD ADJUSTMENT
The Skewer and locknut can be used to add additional preload to the assembly on the Thudbuster LT. While there must be at least
one thread showing beyond the lock nut, additional turns of the nut can add preload. Additional preload will increase the force
required to initiate travel and will minimize the suspension travel for small bumps. Refer the table and illustration below to set up
preload. The values in the table are the thread length beyond the end of the locknut to achieve the preloads in the column heading
for a given elastomer spring combination.
NOTICE! DO NOT exceed 100 pounds (45 kg) preload or 7 threads exposed!
MAINTENANCE
1.
The pivot washers should occasionally be lubricated with a light oil.
2.
The skewer and elastomers must be lubricated periodically with grease. Apply grease to the shaft of the skewer and to the
ends of the elastomers. The elastomers must be removed and reassembled as explained in the changing elastomers
section of the instructions.
NOTICE! If you ride in muddy conditions, using either a fender or the Cane Creek Thudglove neoprene boot will protect the pivots
and extend the life of your seatpost.
NOTICE! Thudbuster seatposts are designed to absorb small bumps only. You should still stand up when encountering large
obstacles on the road or trail.
WARRANTY
Thudbuster seatposts are warranted against defects in materials or workmanship for one year from the date of purchase.
This warranty applies to the original owner only. At their discretion, Cane Creek Cycling Components will repair or replace
any defective seatpost with the same or comparable model. This warranty is void if the seatpost is damaged as a result of
abuse, alterations, modifications, improper adjustment, lack of maintenance, crashes, or other conditions judged by Cane
Creek Components to be abnormal, excessive, or improper. It is mandatory that a Return Authorization Number (RA#) is
received (by calling Cane Creek) before any return is made. Additionally, a dated Proof of Purchase must accompany the
seatpost when returned.
Additional Preload
Minimum Elastomer Recommendation
25 lbs (11 kg)
50 lbs (23 kg)
75lbs (34 kg)
100 lbs (45 kg)
#3 | #3
0.06” (1.6 mm)
0.14” (3.5 mm)
0.22” (5.6 mm)
----
#5 | #5
0.04” (1.0 mm)
0.08” (2.1 mm)
0.13” (3.3 mm)
0.19” (4.7 mm)
#7 | #7
0.03” (0.8 mm)
0.07” (1.7 mm)
0.11” (2.7 mm)
0.15” (3.8 mm)
Thudbuster LT Instructions
Rev.
6/2009
Additional Preload
25 lbs (11 kg)
50 lbs (23 kg)
75 lbs (34 kg) 100 lbs (45 kg)
Grey/Grey
0.06” (1.6 mm) 0.14” (3.5 mm) 0.22” (5.6 mm) ----
Blue/Blue
0.04” (1.0 mm) 0.08” (2.1 mm) 0.13” (3.3 mm) 0.19” (4.7 mm)
Black/Black
0.03” (0.8 mm) 0.07” (1.7 mm) 0.11” (2.7 mm) 0.15” (3.8 mm)
WARRANTY
Thudbuster seatposts are warranted against defects in materials or workmanship for one year from the date of purchase. This warranty
applies to the original owner only. At their discretion, Cane Creek Cycling Components will repair or replace any defective seatpost
improper adjustment, lack of maintenance, crashes, or other conditions judged by Cane Creek Components to be abnormal, excessive,
or improper. It is mandatory that a Return Authorization Number (RA#) is received (by calling Cane Creek) before any return is made.
Additionally, a dated Proof of Purchase must accompany the seatpost when returned.
PRELOAD ADJUSTMENT
The Skewer and locknut can be used to add additional preload to the assembly on the Thudbuster LT. While there must be at least one
thread showing beyond the lock nut, additional turns of the nut can add preload. Additional preload will increase the force required to
initiate travel and will minimize the suspension travel for small bumps. Refer the table and illustration below to set up preload. The val-
ues in the table are the thread length beyond the end of the locknut to achieve the preloads in the column heading for a given elastomer
spring combination.
NOTICE!
DO NOT exceed 100 pounds (45 kg) preload or 7 threads exposed!
MAINTENANCE
1. The pivot washers should occasionally be lubricated with a light oil.
2. The skewer and elastomers must be lubricated periodically with grease. Apply grease to the shaft of the skewer and to the ends of
the elastomers. The elastomers must be removed and reassembled as explained in the changing elastomers section of the instructions.
NOTICE!
If you ride in muddy conditions, using either a fender or the Cane Creek Crudbuster neoprene boot will protect the pivots and
extend the life of your seatpost.
NOTICE!
Thudbuster seatposts are designed to absorb small bumps only. You should still stand up when encountering large obstacles
on the road or trail.
0.8mm Min. (1 thread)
5.6mm Max. (7 threads)
