Estimate uses the published front tire 26×2.3 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
2006 Specialized SX Trail I
Original specifications: SRAM Mix drivetrain · 26" wheels.
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At a glance
- Model year
- 2006
- Category
- Mountain
- Original MSRP
- $3,000.00
- Sizes
- Short, long
- In this record
- 26 specifications · original MSRP
- Archive ID
- 11905
Model history 4 other years
Original buildA1 Premium Aluminum · SRAM Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | A1 Premium Aluminum |
| Fork | Marzocchi 66F, 170mm |
| Fork Material | Magnesium/aluminum, single crown |
| Rear Shock | Fox DHX 4.0 Coil, 6.6" travel |
Drivetrain
| Component Group | SRAM Mix |
|---|---|
| Shifters | SRAM X-7 Trigger |
| Rear Derailleur | SRAM X-9, 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 | Alloy platform with 9/16" Cr-Mo spindle |
Brakes
| Brakes | Avid Juicy 5, hydraulic disc, 8" Polygon rotor front/Avid Juicy 5, hydraulic disc, 8" Polygon rotor rear brakes, Avid Juicy 5 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 Hussefelt, 31.8 OS clamp, 40mm |
| Saddle | Specialized Enduro, hollow Cr-Mo rails |
| 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 EX325 disc, 32-hole |
| Spokes | DT Swiss stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.30" Specialized Chunder, aramid bead, 2 ply, Butyl insert, soft compo |
| Wheel Size | 26" wheels |
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
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 I · Mountain bike, front & rear suspension · Published sizes: Short, long
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi 66F, 170mm · Magnesium/aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi 66F, 170mm · Rear shock: Fox DHX 4.0 Coil, 6.6" travel
Drivetrain
Check drivetrain wear →Archived: Group: SRAM Mix · Shifters: SRAM X-7 Trigger · Rear derailleur: SRAM X-9, 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 5, hydraulic disc, 8" Polygon rotor front/Avid Juicy 5, hydraulic disc, 8" Polygon rotor rear brakes, Avid Juicy 5 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Mavic EX325 disc, 32-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, aramid bead, 2 ply, Butyl insert, soft compo
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 Hussefelt, 31.8 OS clamp, 40mm · Seatpost: Syncros Derived, 30.9mm diameter · Saddle: Specialized Enduro, hollow Cr-Mo rails · Pedals: Alloy platform with 9/16" Cr-Mo spindle
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help document firsthand fit, ride and maintenance details that may no longer be available.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





