Rear tire: 29×2.3.
Velopedia Bicycle Archive
2021 Specialized Epic Expert
Original specifications: geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2021
- Category
- Mountain
- Original MSRP
- $6,200.00
- Sizes
- XS, S, M, L, XL
- Colors
- Gloss/satin Oasis/forest Green, Satin Carbon/spectraflair
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900004329
Model history 5 other years
Original buildCarbon Fiber
Frameset
| Frame Construction | FACT 11m Full Carbon, Progressive XC Race Geometry, Rider-First Engineered™, threaded BB, 12x148mm rear spacing, internal cable routing, 100mm of travel |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | RockShox SID SL BRAIN, Bottom-Adjust Brain damper, Debon Air, 15x110mm, 44mm offset, 100mm Travel |
| Rear Shock | RockShox-Specialized BRAIN, Rx XC Tune, 5 Position Platform Adjust, Rebound Adjust, Integrated Extension, 265x52.5mm |
Drivetrain
| Shifters | SRAM X01 Eagle, trigger, 12-speed |
|---|---|
| Rear Derailleur | SRAM X01 Eagle, 12-speed |
| Crankset | SRAM X1 Eagle, DUB, 32T, XS: 165mm, SM: 170mm, M-XL: 175mm |
| Bottom Bracket | SRAM DUB, BSA 73mm, Threaded |
| BB Shell Width | 73 mm |
| Cassette | SRAM XG-1275 Eagle, 12-speed, 10-50t |
| Chain | SRAM GX Eagle, 12-speed |
Brakes
| Brakes | (F) SRAM Level TL, 2-piston caliper, hydraulic disc / (R) SRAM Level TL, 2-piston caliper, hydraulic disc |
|---|
Cockpit & Contact Points
| Handlebar | Specialized Alloy Minirise, 10mm rise, 750mm, 31.8mm clamp |
|---|---|
| Stem | Specialized XC, 3D-forged alloy, 4-bolt, 6-degree rise |
| Saddle | Body Geometry Power Comp, Cromoly rails |
| Seatpost | Specialized Alloy, Single Bolt, 30.9mm |
Wheels & Tires
| Hubs | (F) DT Swiss 350, 15x110mm spacing, Torque caps, 6-bolt, 28h / (R) DT Swiss 350, Star Ratchet, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h |
|---|---|
| Rims | Roval Control Carbon, 25mm internal width, Zero bead hook, Tubeless ready, 28h |
| Spokes | DT Swiss Competition Race |
| Front Tire | Fast Trak, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.3" |
| Rear Tire | Fast Trak, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.3" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 20 measurements
| Measurement | XS | S | M | L | XL |
|---|---|---|---|---|---|
| Seat tube | 375 mm | 400 mm | 430 mm | 470 mm | 520 mm |
| Effective top tube | 533 mm | 563 mm | 598 mm | 626 mm | 656 mm |
| Head tube | 95 mm | 95 mm | 100 mm | 115 mm | 135 mm |
| Head-tube angle | 67.5° | 67.5° | 67.5° | 67.5° | 67.5° |
| Seat-tube angle | 76.5° | 75.8° | 75.5° | 75.5° | 75.5° |
| Chainstay / rear center | 433 mm | 433 mm | 433 mm | 433 mm | 433 mm |
| Wheelbase | 1090 mm | 1116 mm | 1148 mm | 1179 mm | 1211 mm |
| Bottom-bracket drop | 58 mm | 48 mm | 48 mm | 48 mm | 48 mm |
| Bottom-bracket height | 314 mm | 324 mm | 324 mm | 324 mm | 324 mm |
| Reach | 390 mm | 415 mm | 445 mm | 470 mm | 495 mm |
| Stack | 596 mm | 586 mm | 591 mm | 605 mm | 623 mm |
| Standover height | 740 mm | 763 mm | 766 mm | 776 mm | 788 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 663 mm | 687 mm | 719 mm | 750 mm | 782 mm |
| Trail | 106 mm | 106 mm | 106 mm | 106 mm | 106 mm |
| Fork length / axle-to-crown | 505 mm | 505 mm | 505 mm | 505 mm | 505 mm |
| Seatpost length | 350 mm | 350 mm | 400 mm | 400 mm | 400 mm |
| Crank length | 165 mm | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 60 mm | 60 mm | 70 mm | 70 mm | 70 mm |
| Handlebar width | 750 mm | 750 mm | 750 mm | 750 mm | 750 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)Fewer parts

SRAM DUB BSA Bottom Bracket One Color, 68mm/73mm
Replacement option

SRAM X01 Eagle 12-Speed Rear Derailleur Lunar, 52T
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: 2021 Specialized Epic Expert · Mountain · Published sizes: XS, S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: FACT 11m Full Carbon, Progressive XC Race Geometry, Rider-First Engineered™, threaded BB, 12x148mm rear spacing, internal cable routing, 100mm of travel · Fork: RockShox SID SL BRAIN, Bottom-Adjust Brain damper, Debon Air, 15x110mm, 44mm offset, 100mm Travel
Suspension
Evaluate the suspension →Archived: Fork: RockShox SID SL BRAIN, Bottom-Adjust Brain damper, Debon Air, 15x110mm, 44mm offset, 100mm Travel · Rear shock: RockShox-Specialized BRAIN, Rx XC Tune, 5 Position Platform Adjust, Rebound Adjust, Integrated Extension, 265x52.5mm
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM X01 Eagle, trigger, 12-speed · Rear derailleur: SRAM X01 Eagle, 12-speed · Crankset: SRAM X1 Eagle, DUB, 32T, XS: 165mm, SM: 170mm, M-XL: 175mm · Bottom bracket: SRAM DUB, BSA 73mm, Threaded · Cassette: SRAM XG-1275 Eagle, 12-speed, 10-50t · Chain: SRAM GX Eagle, 12-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) SRAM Level TL, 2-piston caliper, hydraulic disc / (R) SRAM Level TL, 2-piston caliper, hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Rims: Roval Control Carbon, 25mm internal width, Zero bead hook, Tubeless ready, 28h · Hubs: (F) DT Swiss 350, 15x110mm spacing, Torque caps, 6-bolt, 28h / (R) DT Swiss 350, Star Ratchet, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h · Front tire: Fast Trak, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.3" · Rear tire: Fast Trak, Control casing, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.3"
Controls and contact points
Archived: Handlebar: Specialized Alloy Minirise, 10mm rise, 750mm, 31.8mm clamp · Stem: Specialized XC, 3D-forged alloy, 4-bolt, 6-degree rise · Seatpost: Specialized Alloy, Single Bolt, 30.9mm · Saddle: Body Geometry Power Comp, Cromoly rails
Before and during the test ride
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Gallery8 images
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





