Rear tire: 27.5×2.1.
Velopedia Bicycle Archive
2023 Specialized P.4
Original specifications: 12.0kg (26 lb, 7.3 oz) published weight · geometry for 1 published size.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2023
- Category
- Mountain
- Original MSRP
- $2,099.99
- Colors
- Satin Aluminum/ Black, Satin Red Tint Diffused / Fiery Red / White
- Weight
- 12.0kg (26 lb, 7.3 oz)
- Geometry
- 1 manufacturer size
- In this record
- 19 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900004105
Original buildAluminum
Frameset
| Frame Construction | Specialized P.4, A1 Premium Alloy, 27.5", Fully Butted Tubing, Tapered Head Tube, BSA 73mm BB Shell, 12x148TA Sliding Dropouts, Single Speed or Geared Compatible, 52mm CL, Internal cable routing, 30.9 Seat Tube, Dropper Post Compatible, 26" Wheel Compatible |
|---|---|
| Frame Material | Aluminum |
| Fork | Marzocchi Bomber Z1, 27.5", 100mm Travel, Grip Damper, 1.5 Tapered Steerer, 15x110mm Boost, 44mm Offset |
Drivetrain
| Crankset | Specialized P.series, Forged, 24mm Spindle, 52mm CL, 165mm Length; chainrings: 30T |
|---|---|
| Bottom Bracket | BSA 73mm |
| BB Shell Width | 73 mm |
| Cassette | 13T |
| Chain | KMC Z1, 1/2x3/32", Single Speed |
| Pedals | Specialized Platform Pedal |
Brakes
| Brakes | (F) Radius CX7, Mechanical Disc, 180mm Rotor / (R) Sram Level T, Hydraulic Disc, 160mm Rotor |
|---|
Cockpit & Contact Points
| Handlebar | Specialized P.Series MTB Dirt, 6061 alloy, 9-degree backsweep, 6-degree upsweep, 38mm rise, 750mm width, 31.8mm clamp |
|---|---|
| Stem | 35mm Specialized Alloy Trail Stem |
| Saddle | Specialized P.series, Steel Rails |
| Seatpost | Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm |
Wheels & Tires
| Hubs | (F) Alloy, sealed cartridge bearings, 15x110mm thru-axle, 6-bolt, 32h / (R) Alloy, Single Speed, sealed cartridge bearings, 12x148mm thru-axle, 6-bolt, 32h |
|---|---|
| Rims | Specialized P.Series, 27.5", 32h, 26mm ID, Disc Brake Only |
| Spokes | Stainless, 14g |
| Front Tire | Specialized Kicker Sport, 27.5x2.1" |
| Rear Tire | Specialized Kicker Sport, 27.5x2.1" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements1 size · 21 measurements
| Measurement | 27.5" |
|---|---|
| Seat tube | 350 mm |
| Effective top tube | 636 mm |
| Head tube | 120 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 72° |
| Chainstay / rear center | 385 mm |
| Wheelbase | 1094 mm |
| Bottom-bracket drop | 34 mm |
| Bottom-bracket height | 318 mm |
| Reach | 445 mm |
| Stack | 588 mm |
| Standover height | 697 mm |
| Fork offset / rake | 44 mm |
| Front center | 711 mm |
| Trail | 91 mm |
| Fork length / axle-to-crown | 492 mm |
| Seatpost length | 200 mm |
| Crank length | 165 mm |
| Stem length | 35 mm |
| Handlebar width | 750 mm |
| Wheel size | 27.5inch |
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

Continental Ruban ShieldWall Tire Black SL, PureGrip, System, 27.5x2.10
Replacement option
More parts (4)Fewer parts

Race Face Ride XC Seatpost Black, 30.9x375mm
Replacement option
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 19 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: 2023 Specialized P.4 · Mountain
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized P.4, A1 Premium Alloy, 27.5", Fully Butted Tubing, Tapered Head Tube, BSA 73mm BB Shell, 12x148TA Sliding Dropouts, Single Speed or Geared Compatible, 52mm CL, Internal cable routing, 30.9 Seat Tube, Dropper Post Compatible, 26" Wheel Compatible · Fork: Marzocchi Bomber Z1, 27.5", 100mm Travel, Grip Damper, 1.5 Tapered Steerer, 15x110mm Boost, 44mm Offset
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi Bomber Z1, 27.5", 100mm Travel, Grip Damper, 1.5 Tapered Steerer, 15x110mm Boost, 44mm Offset
Drivetrain
Check drivetrain wear →Archived: Crankset: Specialized P.series, Forged, 24mm Spindle, 52mm CL, 165mm Length; chainrings: 30T · Bottom bracket: BSA 73mm · Cassette: 13T · Chain: KMC Z1, 1/2x3/32", Single Speed
Brakes
Inspect the brakes →Archived: Brakes: (F) Radius CX7, Mechanical Disc, 180mm Rotor / (R) Sram Level T, Hydraulic Disc, 160mm Rotor
Wheels and tires
Check wheels and tires →Archived: Rims: Specialized P.Series, 27.5", 32h, 26mm ID, Disc Brake Only · Hubs: (F) Alloy, sealed cartridge bearings, 15x110mm thru-axle, 6-bolt, 32h / (R) Alloy, Single Speed, sealed cartridge bearings, 12x148mm thru-axle, 6-bolt, 32h · Front tire: Specialized Kicker Sport, 27.5x2.1" · Rear tire: Specialized Kicker Sport, 27.5x2.1"
Controls and contact points
Archived: Handlebar: Specialized P.Series MTB Dirt, 6061 alloy, 9-degree backsweep, 6-degree upsweep, 38mm rise, 750mm width, 31.8mm clamp · Stem: 35mm Specialized Alloy Trail Stem · Seatpost: Specialized, 6061 alloy, 2-bolt clamp, 0mm setback, 30.9mm · Saddle: Specialized P.series, Steel Rails · Pedals: Specialized Platform Pedal
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.
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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.



