Jamis FAULTLINE A1 2025
2025 Mountain
Estimate price |
2,599$
Weight | 14.97 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Travel Front 130mm -
Travel Rear 120mm -
Fork RockShox 35 Gold RL
-
Groupset SLX -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Shimano Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Triple-butted 6061 alloy, 120mm travel mp2 suspension, 1.5 – 1 1/8” tapered head tube, asymmetrical chainstays w/12x148mm thru-axle dropout, internal dropper post routing, ISCG05 chainguide mount, Rock Shox Deluxe Select+ RL air shock with rebound adjust & lock out, replaceable derailleur hanger
Suspension Fork
Rock Shox 35 Gold RL 29”, Solo Air compression, lever actuated lockout, external rebound, 35mm aluminum stanchions, magnesium lowers, 15x110mm axle, 130mm travel, 51mm rake
Drivetrain
Rear Derailleur
Shimano SLX, 12-speed
Shift Levers
Shimano SLX, 1×12-speed
Cassette
Shimano M7100, 12-speed, 10-51T
Crank
Race Face Ride, 32T
Bottom Bracket
Race Face BSA
Chain
KMC X12, 12-speed
Pedals
N/A
Wheels
Rims
Stan’s No Tubes Arch D 29” tubeless rims, 32H, Shimano SLX 15x110mm front & 12x148mm rear hubs, stainless spokes
Tires
WTB Vigilante 29 x 2.35” Front & Trail Boss 29 x 2.25” Rear, TCS Tubeless
Brakes
Brakes
Shimano MT401 hydraulic disc, 180mm front & 160mm rear RT30 rotors
Cockpit
Stem
Race Face Ride, 50mm
Handlebar
Race Face Ride, 35 x 760mm
Grips
Jamis Lock-On
Headset
FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer
Seat
Saddle
WTB Volt
Seatpost
KS Rage Dropper, Southpaw remote
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.472 mm | 1.418 mm | 1.37 mm | 1.323 mm |
| Bottom Bracket Height | 339 mm | 339 mm | 339 mm | 339 mm |
| Front Center | 710 mm | 736 mm | 762 mm | 789 mm |
| Rake | 52 mm | 50 mm | 51 mm | 51 mm |
| Trail | 99 mm | 101 mm | 100 mm | 100 mm |
| Stack | 611 mm | 621 mm | 630 mm | 639 mm |
| Reach | 415 mm | 438 mm | 460 mm | 483 mm |
| Top Tube Length | 585 mm | 610 mm | 635 mm | 660 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° |
| Seat Tube Length | 394 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 67.5 ° | 67.5 ° | 67.5 ° | 67.5 ° |
| Head Tube Length | 105 mm | 115 mm | 125 mm | 135 mm |
| Chainstay Length | 445 mm | 445 mm | 445 mm | 445 mm |
| Wheelbase | 1153 mm | 1179 mm | 1205 mm | 1232 mm |
| Bottom Bracket Drop | 35 mm | 35 mm | 35 mm | 35 mm |
| Standover Height | 713 mm | 739 mm | 725 mm | 725 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |