
Velopedia Bicycle Archive
2023 Specialized Rockhopper Comp 29
Original specifications: 13.92kg (30 lb, 11 oz) published weight · geometry for 5 published sizes.
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At a glance
- Model year
- 2023
- Category
- Mountain
- Original MSRP
- $949.99
- Sizes
- S, M, L, XL, XXL
- Colors
- Gloss Fiery Red / Dark Navy, Gloss Birch / Taupe
- Weight
- 13.92kg (30 lb, 11 oz)
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · 8 archived images · original MSRP · geometry
- Archive ID
- 900003949
Model history 9 other years
Original buildAluminum
Frameset
| Frame Construction | Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible |
|---|---|
| Frame Material | Aluminum |
| Fork | SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset |
Drivetrain
| Shifters | Shimano Deore, RapidFire Plus, 10-speed |
|---|---|
| Rear Derailleur | Shimano Deore, RD-M5120, 10-speed |
| Crankset | Stout 1x, forged alloy |
| Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| BB Shell Width | 73 mm |
| Cassette | Sunrace, 11-46t, 10-speed |
| Chain | KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™ |
| Pedals | Specialized Flat Pedal |
Brakes
| Brakes | (F) Tektro BR-M275 Hydraulic Disc, 160mm / (R) Tektro BR-M275 Hydraulic Disc, 160mm |
|---|
Cockpit & Contact Points
| Handlebar | Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
|---|---|
| Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
Wheels & Tires
| Hubs | (F) Formula DC-20, 6-Bolt, disc, 100x9mm spacing, quick-release / (R) Formula DC-22, 6-Bolt freehub, disc, 135x9mm spacing, quick-release |
|---|---|
| Rims | Stout Alloy, hookless, Tubeless ready, 25mm inner width |
| Spokes | Stainless, 14g |
| Front Tire | Fast Trak Sport, 29x2.35" |
| Rear Tire | Fast Trak Sport, 29x2.35" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 20 measurements
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Seat tube | 360 mm | 400 mm | 450 mm | 500 mm | 560 mm |
| Effective top tube | 586 mm | 608 mm | 630 mm | 654 mm | 679 mm |
| Head tube | 95 mm | 95 mm | 105 mm | 120 mm | 135 mm |
| Head-tube angle | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
| Seat-tube angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| Chainstay / rear center | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1105 mm | 1128 mm | 1152 mm | 1178 mm | 1203 mm |
| Bottom-bracket drop | 62 mm | 62 mm | 62 mm | 62 mm | 62 mm |
| Bottom-bracket height | 310 mm | 310 mm | 310 mm | 310 mm | 310 mm |
| Reach | 405 mm | 425 mm | 445 mm | 465 mm | 485 mm |
| Stack | 607 mm | 616 mm | 626 mm | 640 mm | 654 mm |
| Standover height | 732 mm | 754 mm | 781 mm | 820 mm | 853 mm |
| Fork offset / rake | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm |
| Front center | 672 mm | 696 mm | 719 mm | 745 mm | 770 mm |
| Trail | 97 mm | 97 mm | 97 mm | 97 mm | 97 mm |
| Fork length / axle-to-crown | 505 mm | 515 mm | 515 mm | 515 mm | 515 mm |
| Seatpost length | 400 mm | — | — | — | — |
| Crank length | 175 mm | — | — | — | — |
| Stem length | 45 mm | 60 mm | 60 mm | 70 mm | 70 mm |
| Handlebar width | 740 mm | — | — | — | — |
Dimensions as recorded.
Parts & serviceability
Find replacement parts
2-bolt clamp, 30.9mm

Race Face Ride XC Seatpost Black, 30.9x375mm
Replacement option
X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
More parts (4)Fewer parts
11-46t, 10-speed
29x2.35"
Replacement search: 29x2.35 hookless compatible bicycle tire Before ordering: Check tire approval and pressure for your rim.160mm / (R) Tektro BR-M275 Hydraulic Disc, 160mm
RapidFire Plus, 10-speed
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 21 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 Rockhopper Comp 29 · Mountain · Published sizes: S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible · Fork: SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset
Suspension
Evaluate the suspension →Archived: Fork: SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Deore, RapidFire Plus, 10-speed · Rear derailleur: Shimano Deore, RD-M5120, 10-speed · Crankset: Stout 1x, forged alloy · Bottom bracket: Square-tapered, 73mm, internal bearings, 122.5mm spindle · Cassette: Sunrace, 11-46t, 10-speed · Chain: KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™
Brakes
Inspect the brakes →Archived: Brakes: (F) Tektro BR-M275 Hydraulic Disc, 160mm / (R) Tektro BR-M275 Hydraulic Disc, 160mm
Wheels and tires
Check wheels and tires →Archived: Rims: Stout Alloy, hookless, Tubeless ready, 25mm inner width · Hubs: (F) Formula DC-20, 6-Bolt, disc, 100x9mm spacing, quick-release / (R) Formula DC-22, 6-Bolt freehub, disc, 135x9mm spacing, quick-release · Front tire: Fast Trak Sport, 29x2.35" · Rear tire: Fast Trak Sport, 29x2.35"
Controls and contact points
Archived: Handlebar: Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm · Stem: Stout 3D-forged alloy, 31.8mm, 6-degree rise · Seatpost: Alloy, 2-bolt clamp, 30.9mm · Saddle: Bridge Sport, Steel rails, 155/143mm · Pedals: Specialized Flat Pedal
Before and during the test ride
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Gallery8 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





