
SRAM PC-870 Chain One Color, 8 Speed, 114 Links
8 Speed, 114 Links
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
| 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 XCE 29, 28mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 46mm offset |
| Shifters | microSHIFT, TS39-8R, 2x8-speed |
|---|---|
| Front Derailleur | microSHIFT FD-M462, 2-speed |
| Rear Derailleur | Microshift Mezzo, 8spd |
| Crankset | Stout 2x, forged alloy |
| Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
| BB Shell Width | 73 mm |
| Cassette | SunRace, 8-speed, 11-34t |
| Chain | KMC X8 EPT, anti-rust coating, 8-speed w/ reusable Missing Link™ |
| Pedals | Specialized Flat Pedal |
| Brakes | (F) Radius CX7, mechanical disc, 160mm / (R) Radius CX7, mechanical disc, 160mm |
|---|
| Handlebar | Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
|---|---|
| Stem | 3D-forged alloy, 31.8mm, 7-degree rise |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Seatpost | Alloy, 2-bolt clamp, 30.9mm |
| Hubs | (F) Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H / (R) Formula SP-2125, 6-Bolt freehub, disc, 135x9mm spacing, quick-release |
|---|---|
| Rims | Specialized alloy, disc only, double-wall, 25mm inner width, 32h |
| Spokes | Stainless, 14g |
| Front Tire | Fast Trak Sport, 29x2.35" |
| Rear Tire | Fast Trak Sport, 29x2.35" |
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Seat tube | 360 mm | 400 mm | 450 mm | 500 mm | 560 mm |
| Effective top tube | 608 mm | 630 mm | 654 mm | 679 mm | 586 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 | 350 mm | 400 mm | 400 mm | 400 mm | 400 mm |
| Crank length | 170 mm | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem length | 40 mm | 60 mm | 60 mm | 70 mm | 70 mm |
| Handlebar width | 720 mm | 740 mm | 740 mm | 740 mm | 740 mm |
Dimensions as recorded.
Parts & serviceability

8 Speed, 114 Links
Replacement option · verify fit

30.9x400mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
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.
Archived: 2022 Specialized Rockhopper 29 · Mountain · Published sizes: S, M, L, XL, XXL
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 XCE 29, 28mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 46mm offset
Archived: Fork: SR Suntour XCE 29, 28mm stanchions, Rx Tune, coil spring, QR, 90/100mm travel (size-specific), 46mm offset
Archived: Shifters: microSHIFT, TS39-8R, 2x8-speed · Front derailleur: microSHIFT FD-M462, 2-speed · Rear derailleur: Microshift Mezzo, 8spd · Crankset: Stout 2x, forged alloy · Bottom bracket: Square-tapered, 73mm, internal bearings, 122.5mm spindle · Cassette: SunRace, 8-speed, 11-34t · Chain: KMC X8 EPT, anti-rust coating, 8-speed w/ reusable Missing Link™
Archived: Brakes: (F) Radius CX7, mechanical disc, 160mm / (R) Radius CX7, mechanical disc, 160mm
Archived: Rims: Specialized alloy, disc only, double-wall, 25mm inner width, 32h · Hubs: (F) Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H / (R) Formula SP-2125, 6-Bolt freehub, disc, 135x9mm spacing, quick-release · Front tire: Fast Trak Sport, 29x2.35" · Rear tire: Fast Trak Sport, 29x2.35"
Archived: Handlebar: Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm · Stem: 3D-forged alloy, 31.8mm, 7-degree rise · Seatpost: Alloy, 2-bolt clamp, 30.9mm · Saddle: Bridge Sport, Steel rails, 155/143mm · Pedals: Specialized Flat Pedal
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.
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.