Rear tire: 29×2.1.
Velopedia Bicycle Archive
2018 Specialized Epic Expert
Original specifications: geometry for 4 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2018
- Category
- Mountain
- Original MSRP
- $5,500.00
- Sizes
- S, M, L, XL
- Colors
- Gloss Gold Flake/Candy Red/Cosmic Black
- Geometry
- 4 manufacturer sizes
- In this record
- 22 specifications · archived image · original MSRP · geometry
- Archive ID
- 900003353
Model history 4 other years
Original buildCarbon Fiber
Frameset
| Frame Construction | Specialized FACT 11m, full carbon frame, XC Geometry, threaded BB, 12x148mm rear spacing, internal cable routing, 100mm of travel |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | RockShox SID 29 w/ Brain, tapered alloy steerer, bottom-adjust Brain Fade, Solo Air, 110x15mm Maxle® Stealth thru-axle, 100mm of travel, 42mm offset, |
| Fork Material | Aluminum |
| Rear Shock | RockShox/Specialized Micro Brain shock w/ Spike Valve, AUTOSAG, 51x257mm |
Drivetrain
| Shifters | SRAM GX Eagle, trigger, 12-speed |
|---|---|
| Rear Derailleur | SRAM GX Eagle, 12-speed |
| Crankset | Truvativ Stylo, 6K alloy, Boost™ 148, 24mm spindle; chainrings: Alloy Eagle 32T |
| Bottom Bracket | SRAM GXP |
| Cassette | SRAM GX Eagle, 12-speed, 10-50t |
| Chain | SRAM GX Eagle, 12-speed w/ PowerLink |
| Pedals | Specialized Platform, 9/16" spindle |
Brakes
| Brakes | (F) SRAM Level TL, hydraulic disc, organic pads, 160/180mm rotor / (R) SRAM Level TL, hydraulic disc, organic pads, 160 rotor |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Mini-rise, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 720mm width, 31.8mm clamp |
|---|---|
| Stem | Specialized XC, 3D-forged alloy, 4-bolt, 6-degree rise |
| Saddle | Body Geometry Phenom Comp, Adaptive Edge design, Hollow Cr-Mo rails, 143mm |
| Seatpost | Specialized, alloy, single bolt, 21mm offset, 30.9mm |
Wheels & Tires
| Hubs | (F) Specialized, sealed cartridge bearing, 15x110mm spacing, torque caps, 32h / (R) Specialized disc, sealed cartridge bearings, 12x148mm spacing, 32h |
|---|---|
| Rims | Roval Control Carbon, 22mm internal width, tubeless-ready |
| Spokes | DT Swiss Industry, stainless, 2.0 |
| Front Tire | Fast Trak, GRIPTON compound, 2Bliss Ready, 29 x 2.3" |
| Rear Tire | Fast Trak, GRIPTON compound, 2Bliss Ready, 29 x 2.1" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements4 sizes · 20 measurements
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 400 mm | 434 mm | 470 mm | 520 mm |
| Effective top tube | 568 mm | 595 mm | 623 mm | 649 mm |
| Head tube | 95 mm | 105 mm | 120 mm | 140 mm |
| Head-tube angle | 69.5° | 69.5° | 69.5° | 69.5° |
| Seat-tube angle | 74.75° | 74.75° | 74.75° | 74.75° |
| Chainstay / rear center | 438 mm | 438 mm | 438 mm | 438 mm |
| Wheelbase | 1095 mm | 1123 mm | 1152 mm | 1178 mm |
| Bottom-bracket drop | 38.9 mm | 38.9 mm | 38.9 mm | 38.9 mm |
| Bottom-bracket height | 332.6 mm | 332.6 mm | 332.6 mm | 332.6 mm |
| Reach | 408 mm | 433 mm | 456 mm | 475 mm |
| Stack | 588 mm | 597 mm | 611 mm | 630 mm |
| Standover height | 764 mm | 770 mm | 776 mm | 799 mm |
| Fork offset / rake | 42 mm | 42 mm | 42 mm | 42 mm |
| Front center | 659 mm | 688 mm | 716 mm | 742 mm |
| Trail | 94 mm | 94 mm | 94 mm | 94 mm |
| Fork length / axle-to-crown | 506 mm | 506 mm | 506 mm | 506 mm |
| Seatpost length | 350 mm | 400 mm | 400 mm | 400 mm |
| Crank length | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 60 mm | 80 mm | 90 mm | 100 mm |
| Handlebar width | 720 mm | 720 mm | 720 mm | 720 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

SRAM GX Eagle 12-Speed Chain Silver, 126 links

SRAM XG-1275 GX Eagle 12-Speed Cassette Black, 10-50t
More parts (6)
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Bike-specific inspection checklist 23 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: 2018 Specialized Epic Expert · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized FACT 11m, full carbon frame, XC Geometry, threaded BB, 12x148mm rear spacing, internal cable routing, 100mm of travel · Fork: RockShox SID 29 w/ Brain, tapered alloy steerer, bottom-adjust Brain Fade, Solo Air, 110x15mm Maxle® Stealth thru-axle, 100mm of travel, 42mm offset, · Aluminum
Suspension
Evaluate the suspension →Archived: Fork: RockShox SID 29 w/ Brain, tapered alloy steerer, bottom-adjust Brain Fade, Solo Air, 110x15mm Maxle® Stealth thru-axle, 100mm of travel, 42mm offset, · Rear shock: RockShox/Specialized Micro Brain shock w/ Spike Valve, AUTOSAG, 51x257mm
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM GX Eagle, trigger, 12-speed · Rear derailleur: SRAM GX Eagle, 12-speed · Crankset: Truvativ Stylo, 6K alloy, Boost™ 148, 24mm spindle; chainrings: Alloy Eagle 32T · Bottom bracket: SRAM GXP · Cassette: SRAM GX Eagle, 12-speed, 10-50t · Chain: SRAM GX Eagle, 12-speed w/ PowerLink
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM Level TL, hydraulic disc, organic pads, 160/180mm rotor / (R) SRAM Level TL, hydraulic disc, organic pads, 160 rotor
Wheels and tires
Check wheels and tires →Archived: Rims: Roval Control Carbon, 22mm internal width, tubeless-ready · Hubs: (F) Specialized, sealed cartridge bearing, 15x110mm spacing, torque caps, 32h / (R) Specialized disc, sealed cartridge bearings, 12x148mm spacing, 32h · Front tire: Fast Trak, GRIPTON compound, 2Bliss Ready, 29 x 2.3" · Rear tire: Fast Trak, GRIPTON compound, 2Bliss Ready, 29 x 2.1"
Controls and contact points
Archived: Handlebar: Specialized Mini-rise, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 720mm width, 31.8mm clamp · Stem: Specialized XC, 3D-forged alloy, 4-bolt, 6-degree rise · Seatpost: Specialized, alloy, single bolt, 21mm offset, 30.9mm · Saddle: Body Geometry Phenom Comp, Adaptive Edge design, Hollow Cr-Mo rails, 143mm · Pedals: Specialized Platform, 9/16" spindle
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





