Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 900004335
| Model year | 2021 |
|---|---|
| Brand | Specialized |
| Model | Rockhopper Comp 29 |
| Bicycle type | Mountain |
| Archive ID | 900004335 |
| Original MSRP | $1,000.00 |
| Colors | Gloss Clay / Satin Cast Blue Metallic; Gloss Metallic White Silver / Satin Black; Gloss Oasis / Tarmac Black; Satin Smoke / Satin Black |
| Sizes | S; M; L; XL; XXL |
| 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 |
| Shifters | microSHIFT Advent, 9-speed |
|---|---|
| Rear derailleur | microSHIFT Advent, 1x9 w/ clutch |
| Crankset | Stout 1x, forged alloy |
| Bottom bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| BB shell width | 73 mm |
| Cassette | microSHIFT Advent, 9-speed, 11-42t |
| Chain | KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™ |
| Brakes | (F) Tektro HD-M275, hydraulic disc, 180/160mm / (R) Tektro HD-M275, hydraulic disc, 160mm |
|---|
| 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 |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
| Hubs | (F) Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h / (R) Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h |
|---|---|
| Rims | Stout Alloy, hookless, double-wall, 25mm inner width |
| Spokes | Stainless, 14g |
| Front tire | Ground Control Sport, 29x2.3" |
| Rear tire | Ground Control Sport, 29x2.3" |
| Seat tube | 360 mm |
|---|---|
| Effective top tube | 586 mm |
| Head tube | 95 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 440 mm |
| Wheelbase | 1105 mm |
| Bottom-bracket drop | 62 mm |
| Bottom-bracket height | 310 mm |
| Reach | 405 mm |
| Stack | 607 mm |
| Standover height | 732 mm |
| Fork offset / rake | 46 mm |
| Front center | 672 mm |
| Trail | 97 mm |
| Fork length / axle-to-crown | 505 mm |
| Seatpost length | 350 mm |
| Crank length | 170 mm |
| Stem length | 45 mm |
| Handlebar width | 720 mm |
| Seat tube | 400 mm |
|---|---|
| Effective top tube | 608 mm |
| Head tube | 95 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 440 mm |
| Wheelbase | 1128 mm |
| Bottom-bracket drop | 62 mm |
| Bottom-bracket height | 310 mm |
| Reach | 425 mm |
| Stack | 616 mm |
| Standover height | 754 mm |
| Fork offset / rake | 46 mm |
| Front center | 696 mm |
| Trail | 97 mm |
| Fork length / axle-to-crown | 515 mm |
| Seatpost length | 400 mm |
| Crank length | 170 mm |
| Stem length | 60 mm |
| Handlebar width | 740 mm |
| Seat tube | 450 mm |
|---|---|
| Effective top tube | 630 mm |
| Head tube | 105 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 440 mm |
| Wheelbase | 1152 mm |
| Bottom-bracket drop | 62 mm |
| Bottom-bracket height | 310 mm |
| Reach | 445 mm |
| Stack | 626 mm |
| Standover height | 781 mm |
| Fork offset / rake | 46 mm |
| Front center | 719 mm |
| Trail | 97 mm |
| Fork length / axle-to-crown | 515 mm |
| Seatpost length | 400 mm |
| Crank length | 175 mm |
| Stem length | 60 mm |
| Handlebar width | 740 mm |
| Seat tube | 500 mm |
|---|---|
| Effective top tube | 654 mm |
| Head tube | 120 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 440 mm |
| Wheelbase | 1178 mm |
| Bottom-bracket drop | 62 mm |
| Bottom-bracket height | 310 mm |
| Reach | 465 mm |
| Stack | 640 mm |
| Standover height | 820 mm |
| Fork offset / rake | 46 mm |
| Front center | 745 mm |
| Trail | 97 mm |
| Fork length / axle-to-crown | 515 mm |
| Seatpost length | 400 mm |
| Crank length | 175 mm |
| Stem length | 70 mm |
| Handlebar width | 740 mm |
| Seat tube | 560 mm |
|---|---|
| Effective top tube | 679 mm |
| Head tube | 135 mm |
| Head-tube angle | 68.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 440 mm |
| Wheelbase | 1203 mm |
| Bottom-bracket drop | 62 mm |
| Bottom-bracket height | 310 mm |
| Reach | 485 mm |
| Stack | 654 mm |
| Standover height | 853 mm |
| Fork offset / rake | 46 mm |
| Front center | 770 mm |
| Trail | 97 mm |
| Fork length / axle-to-crown | 515 mm |
| Seatpost length | 400 mm |
| Crank length | 175 mm |
| Stem length | 70 mm |
| Handlebar width | 740 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 27, 2026.