Velopedia Bicycle Archive

2021 Jamis Hardline C1

Original specifications: Shimano XTR, 12-speed drivetrain · 27.5 wheels · 30.25 lbs published weight.

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At a glance

Archive #900001561
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
In this record
22 specifications · 3 archived images · original MSRP · geometry
Campaign
Original buildCarbon · Shimano XTR, 12-speed · 27.5

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

S/15.5″M/17″L/19″XL/21″

Published colors

Black

Frameset

Frame ConstructionDyad 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 MaterialCarbon
ForkFox 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 MaterialAluminum
Rear ShockFox DHX2 Factory Series coil shock w/2-position compression switch

Drivetrain

Component GroupShimano XTR, 12-speed
ShiftersShimano XTR, 1×12-speed
Rear DerailleurShimano XTR, 12-speed
CranksetShimano XTR M9120, 32T
Bottom BracketShimano BSA
CassetteShimano M9100, 12-speed, 10-51T
ChainShimano M9100, 12-speed

Brakes

BrakesShimano XTR M9120 4-piston Ice-Tech hydraulic disc, RT-900 180mm rotors

Cockpit & Contact Points

HeadsetFSA Orbit IS Integrated, 8mm cone spacer
HandlebarRace Face Turbine R, 800mm x 20mm rise, 35mm diameter
StemRace Face Turbine R, 50mm extension, 35mm clamp diameter
SaddleWTB Volt
SeatpostFox Transfer Factory Series Dropper, 1x remote

Wheels & Tires

WheelsStans Flow CB7 Carbon 27.5″ tubeless wheels, 15x110mm axle front and 12x148mm rear E-SYNC hubs, Sapim D-Light spokes
Front TireVittoria Mazza 27.5 x 2.4″, TNT tubeless
Rear TireVittoria Mazza 27.5 x 2.4″, TNT tubeless
Wheel Size27.5

Geometry

4 sizes · 9 measurements

Frame measurements by size.

All geometry measurements4 sizes · 9 measurements
MeasurementS/15.5″M/17″L/19″XL/21″
Effective top tube585 mm610 mm635 mm660 mm
Head tube100 mm110 mm120 mm130 mm
Head-tube angle65°65°65°65°
Seat-tube angle73.5°73.5°73.5°73.5°
Chainstay / rear center429 mm429 mm429 mm429 mm
Wheelbase1157 mm1182 mm1208 mm1233 mm
Reach418 mm439 mm461 mm482 mm
Stack585 mm595 mm604 mm613 mm
Standover height751 mm745 mm749 mm765 mm

Dimensions as recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes32T · 10–51T · 12-speed
Lowest0.63:1 Highest3.20:1 Total range510%
Estimated speed At 90 RPM Lowest gear4.7 mph Highest gear23.8 mph

Rear tire: 27.5×2.4.

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.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
Shimano M9100

12-speed

Retailer offers
Cassette · Original
Shimano M9100

12-speed, 10-51T

Retailer offers
Front tire · Original
Vittoria Mazza 27.5 x 2.4″

TNT tubeless

Retailer offers
Other replacement options (2)
More parts (9)Fewer parts
Rear derailleur · Original
Shimano XTR

12-speed

Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers
Bottom bracket · Original
Shimano BSA
Saddle · Original
WTB Volt
Crankset · Original
Shimano XTR M9120

32T

Shifters · Original
Shimano XTR

1×12-speed

Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Handlebar · Original
Race Face Turbine R

800mm x 20mm rise, 35mm diameter

Stem · Original
Race Face Turbine R

50mm extension, 35mm clamp diameter

Seatpost · Original
Fox Transfer Factory Series Dropper

1x remote

Headset · Original
FSA Orbit IS Integrated

8mm cone spacer

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.

Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
Vittoria Mazza 27.5 x 2.4″, TNT tubeless
Rear tire
Vittoria Mazza 27.5 x 2.4″, TNT tubeless
Drivetrain
12-speed
Bottom bracket / shell
Shimano BSA
Equipment inspection checks 14 checks based on 6 archived component groups Open equipment checksClose equipment checks
0 of 14 checked Progress stays in this browser for this record.

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

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

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

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

Archived: Brakes: Shimano XTR M9120 4-piston Ice-Tech hydraulic disc, RT-900 180mm rotors

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

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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