
Velopedia Bicycle Archive
2021 Jamis Hardline C1
Mountain bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2021
- Category
- Mountain
- Original MSRP
- $9,499.95
- Sizes
- S/15.5″, M/17″, L/19″, XL/21″
- Colors
- Black
- Weight
- 30.25 lbs
- Geometry
- 4 manufacturer sizes · Geometry context
- Record coverage
- 23 preserved details · 3 archived images · original MSRP · preserved geometry
- Archive ID
- 900001561
Frameset
| Frame Construction | Dyad Pro High Modulus Carbon Fiber, 160mm travel 3VO suspension, Enduro® Max sealed bearing pivots, 1.5 – 1 1/8” tapered head tube, 12x148mm thru-axle, Internal dropper post routing, Custom Jamis upper chainguide, MRP SXg lower chainguide, Fox DHX2 Factory Series coil shock w/2-position compression switch, SLS 400lb Spring, high/low speed compression, high/low speed rebound,10mm hardware, replaceable derailleur hanger |
|---|---|
| Frame Material | Carbon |
| Fork | Fox 38 Factory Series Float 27.5″ w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 170mm travel, 44mm rake |
| Fork Material | Aluminum |
| Rear Shock | Fox DHX2 Factory Series coil shock w/2-position compression switch |
Drivetrain
| Component Group | Shimano XTR, 12-speed |
|---|---|
| Shifters | Shimano XTR, 1×12-speed |
| Rear Derailleur | Shimano XTR, 12-speed |
| Crankset | Shimano XTR M9120, 32T |
| Bottom Bracket | Shimano BSA |
| Cassette | Shimano M9100, 12-speed, 10-51T |
| Chain | Shimano M9100, 12-speed |
Brakes
| Brakes | Shimano XTR M9120 4-piston Ice-Tech hydraulic disc, RT-900 180mm rotors |
|---|
Cockpit & Contact Points
| Headset | FSA Orbit IS Integrated, 8mm cone spacer |
|---|---|
| Handlebar | Race Face Turbine R, 800mm x 20mm rise, 35mm diameter |
| Stem | Race Face Turbine R, 50mm extension, 35mm clamp diameter |
| Saddle | WTB Volt |
| Seatpost | Fox Transfer Factory Series Dropper, 1x remote |
Wheels & Tires
| Wheels | Stans Flow CB7 Carbon 27.5″ tubeless wheels, 15x110mm axle front and 12x148mm rear E-SYNC hubs, Sapim D-Light spokes |
|---|---|
| Front Tire | Vittoria Mazza 27.5 x 2.4″, TNT tubeless |
| Rear Tire | Vittoria Mazza 27.5 x 2.4″, TNT tubeless |
| Wheel Size | 27.5 |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | S/15.5″ | M/17″ | L/19″ | XL/21″ |
|---|---|---|---|---|
| Effective top tube | 585 mm | 610 mm | 635 mm | 660 mm |
| Head tube | 100 mm | 110 mm | 120 mm | 130 mm |
| Head-tube angle | 65° | 65° | 65° | 65° |
| Seat-tube angle | 73.5° | 73.5° | 73.5° | 73.5° |
| Chainstay / rear center | 429 mm | 429 mm | 429 mm | 429 mm |
| Wheelbase | 1157 mm | 1182 mm | 1208 mm | 1233 mm |
| Reach | 418 mm | 439 mm | 461 mm | 482 mm |
| Stack | 585 mm | 595 mm | 604 mm | 613 mm |
| Standover height | 751 mm | 745 mm | 749 mm | 765 mm |
Geometry source: Jamis first-party geometry table (2021 GEO - HARDLINE) ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
S/15.5″ geometry
Archive context: Its stack of 585 mm sits toward the lower end. The seat angle of 73.5° sits somewhat more relaxed than typical. The chainstay of 429 mm sits somewhat shorter than typical.
Compared with 48 distinct mountain geometries in the Small-equivalent size cohort from model years 2021–2023 in the Velopedia archive.M/17″ geometry
Archive context: Its stack of 595 mm sits toward the lower end. The chainstay of 429 mm sits toward the shorter rear-center end. The seat angle of 73.5° sits toward the more relaxed end.
Compared with 52 distinct mountain geometries in the Medium-equivalent size cohort from model years 2021–2023 in the Velopedia archive.L/19″ geometry
Archive context: Its stack of 604 mm sits toward the lower end. The chainstay of 429 mm sits toward the shorter rear-center end. The seat angle of 73.5° sits somewhat more relaxed than typical.
Compared with 44 distinct mountain geometries in the Large-equivalent size cohort from model years 2021–2023 in the Velopedia archive.XL/21″ geometry
Archive context: Its stack of 613 mm sits toward the lower end. The chainstay of 429 mm sits toward the shorter rear-center end. The seat angle of 73.5° sits toward the more relaxed end.
Compared with 43 distinct mountain geometries in the XL-equivalent size cohort from model years 2021–2023 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. 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. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
- SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
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 Jamis Hardline C1 · Mountain · Published sizes: S/15.5″, M/17″, L/19″, XL/21″
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon · Fork: Fox 38 Factory Series Float 27.5″ w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 170mm travel, 44mm rake · Aluminum
Suspension
Evaluate the suspension →Archived: Fork: Fox 38 Factory Series Float 27.5″ w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 170mm travel, 44mm rake · Rear shock: Fox DHX2 Factory Series coil shock w/2-position compression switch
Drivetrain
Check drivetrain wear →Archived: Group: Shimano XTR, 12-speed · Shifters: Shimano XTR, 1×12-speed · Rear derailleur: Shimano XTR, 12-speed · Crankset: Shimano XTR M9120, 32T · Bottom bracket: Shimano BSA · Cassette: Shimano M9100, 12-speed, 10-51T · Chain: Shimano M9100, 12-speed
Brakes
Inspect the brakes →Archived: Brakes: Shimano XTR M9120 4-piston Ice-Tech hydraulic disc, RT-900 180mm rotors
Wheels and tires
Check wheels and tires →Archived: Wheel size: 27.5 · Wheels: Stans Flow CB7 Carbon 27.5″ tubeless wheels, 15x110mm axle front and 12x148mm rear E-SYNC hubs, Sapim D-Light spokes · Front tire: Vittoria Mazza 27.5 x 2.4″, TNT tubeless · Rear tire: Vittoria Mazza 27.5 x 2.4″, TNT tubeless
Controls and contact points
Archived: Headset: FSA Orbit IS Integrated, 8mm cone spacer · Handlebar: Race Face Turbine R, 800mm x 20mm rise, 35mm diameter · Stem: Race Face Turbine R, 50mm extension, 35mm clamp diameter · Seatpost: Fox Transfer Factory Series Dropper, 1x remote · Saddle: WTB Volt
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Gallery
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




