
Velopedia Bicycle Archive
2006 Specialized SX Trail II
Mountain bike, front & rear suspension bicycle from the Velopedia specification archive.
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- Original MSRP
- $3,800.00
- Sizes
- Short, long
- Archive ID
- 11906
Current market
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Velopedia analysis
What the specifications mean
The fork and rear shock need to be set up as a pair. If their sag or rebound settings are far apart, the front and rear of the bike can react very differently. The 309% cassette range describes the available gearing more clearly than the component-group name alone. Hydraulic disc brakes shift routine service toward pad and rotor condition, fluid leaks and use of the correct bleed fluid.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
- SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 9-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2006 Specialized SX Trail II · Mountain bike, front & rear suspension · Published sizes: Short, long
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Fox 36 Van R, 160mm · Magnesium/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: Fox 36 Van R, 160mm · Rear shock: Fox DHX Coil 5.0, 6.6" travel
Drivetrain
Check drivetrain wear →Archived: Group: SRAM Mix · Shifters: SRAM X-9 Trigger · Rear derailleur: SRAM X.0, micro cage · Crankset: Truvativ Holzfeller with Blackspire NS-1 Lexan Guide, 36 teeth · Bottom bracket: TruVativ Howitzer · Rear cogs: 9-speed, 11 - 34 teeth · Chain: SRAM PC-971 with Power Link
Brakes
Inspect the brakes →Archived: Brakes: Avid Juicy 7, hydraulic disc, 8" Polygon rotor brakes, Avid Juicy 7 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Mavic EX721, 36-hole · Hubs: Front: Specialized disc, high/low flange, 20mm thru axle, Rear: Specialized disc, high/low flange, 10mm bolt-on · Front tire: 26 x 2.30" Specialized Chunder 60 TPI, aramid bead, 2 ply, Butyl insert, soft
Controls and contact points
Archived: Headset: 1 1/8" threadless, alloy upper cup with OS bearing, 7050 alloy lower cup · Handlebar: Specialized Demo OS, 31.8mm DH bar clamp, 6 degree upsweep, 9 degree back · Stem: Truvativ Holzfeller, 31.8 clamp, 40mm · Seatpost: Syncros Derived, 30.9mm diameter · Saddle: Specialized Enduro, hollow Cr-Mo rails, super light foam · Pedals: Specialized Lo-Pro Mag, screw in pins, sealed cartidge bearing
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | Fox 36 Van R, 160mm |
| Fork Material | Magnesium/aluminum, single crown |
| Rear Shock | Fox DHX Coil 5.0, 6.6" travel |
Drivetrain
| Component Group | SRAM Mix |
|---|---|
| Shifters | SRAM X-9 Trigger |
| Front Derailleur | N/A |
| Rear Derailleur | SRAM X.0, micro cage |
| Crankset | Truvativ Holzfeller with Blackspire NS-1 Lexan Guide, 36 teeth |
| Bottom Bracket | TruVativ Howitzer |
| Rear Cogs | 9-speed, 11 - 34 teeth |
| Chain | SRAM PC-971 with Power Link |
| Pedals | Specialized Lo-Pro Mag, screw in pins, sealed cartidge bearing |
Brakes
| Brakes | Avid Juicy 7, hydraulic disc, 8" Polygon rotor brakes, Avid Juicy 7 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless, alloy upper cup with OS bearing, 7050 alloy lower cup |
|---|---|
| Handlebar | Specialized Demo OS, 31.8mm DH bar clamp, 6 degree upsweep, 9 degree back |
| Handlebar Extensions | Not included |
| Stem | Truvativ Holzfeller, 31.8 clamp, 40mm |
| Saddle | Specialized Enduro, hollow Cr-Mo rails, super light foam |
| Seatpost | Syncros Derived, 30.9mm diameter |
Wheels & Tires
| Hubs | Front: Specialized disc, high/low flange, 20mm thru axle, Rear: Specialized disc, high/low flange, 10mm bolt-on |
|---|---|
| Rims | Mavic EX721, 36-hole |
| Spokes | DT Swiss stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.30" Specialized Chunder 60 TPI, aramid bead, 2 ply, Butyl insert, soft |
| Wheel Size | 26" wheels |
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.



