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2022 Jamis

FAULTLINE A1

A 29″ aluminum frame full suspension trail bike with upper mid-range components.
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Manufacturer Price

$2,599
Weight33.0 lbs  
FrameAluminum
SuspensionFull, 120 / 130mm
ForkRockShox 35 Gold RL
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetSLX
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
FAULTLINE A1
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

FAULTLINE A1

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Jamis Faultline is a trail bike with a mixed reception, praised for its efficient pedaling, lively riding experience, and impressive specifications, including premium parts and a solid front end for descending. However, its conservative geometry, particularly the slack seat angle, hampers climbing efficiency and comfort, and the suspension can feel harsh on longer descents. The bike excels on flowing trails but struggles with steep and technical terrain.

Pros
  • Efficient pedaling and lively riding experience

  • Impressive specifications with premium parts

  • Solid front end for confident descending

  • Good suspension setup for smoother trails

  • Attractive design and finish

Cons
  • Slack seat angle affects climbing efficiency

  • Conservative geometry limits performance on steep terrain

  • Suspension can feel harsh on long descents

  • Under-performing components in some builds

  • Limited comfort for aggressive riding

Key Quotes
The Faultline A1 is in its happy place on flowing, cross-country type trails, but can soon get out of its depth on steep and technical climbs and hard-hitting descents.
Bike Perfect logoBike Perfect
It’s a shame the geometry holds the Jamis back, because the 120mm rear travel is surprisingly capable.
BikeRadar logoBikeRadar
The Jamis Faultline is surely the most cross country-based bike in this roundup.
Loam Wolf logoLoam Wolf
A fundamental geometry problem blunts the Jamis Faultline A1's performance compared to the best in class, but it's still a capable bike that's fun to ride.
MBR logoMBR
With a steeper seat angle, this Jamis Faultline A2 would be amazing. That one change would make all the difference.
Singletrack World logoSingletrack World

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Bike Perfect
Jamis Faultline A1 review – great spec but has a key flaw

May 2023 · James Watkins

A great-looking bike for the money, but seriously hampered by the laid-back seat position

Highs
  • Great spec

  • Nicely finished with premium paint job

  • Excellent set of wheels

Lows
  • Seat angle far too slack

  • Under-performing KMC chain

  • Heavily damped suspension may be a problem for light riders

Read Review

Loam Wolf
2023 Budget Bike Roundup: Jamis Faultline A1

Feb 2023

If you’re a rider who rides smoother, flatter trails with a bias toward climbing, the Jamis Faultline is an efficient and cost-effective bike.

Highs
  • Pedaling efficiency

  • Lively riding experience

Lows
  • Seating position

  • Dropper post remote

Read Review

Singletrack World
Jamis Faultline A2 review

Feb 2023 · Ben Haworth

With a steeper seat angle, this Jamis Faultline A2 would be amazing. That one change would make all the difference.

Read Review

BikeRadar
Jamis Faultline A2 review

Jan 2023 · Luke Marshall

More comfortable on the blues than the reds, the A2's outdated geometry holds it back

Highs
  • Tyres help keep speed up on smooth trails

  • Capable suspension platform for 120mm and basic shock

  • Frame features of a modern trail bike

Lows
  • Dated geometry

  • Lack of chainstay protection

  • Narrow comfort zone

  • Small 160mm rear disc rotor

Read Review

MBR
Jamis Faultline A1 review - MBR

Jan 2023 · Alan Muldoon

The Jamis Dakar has always been a strong contender in our entry-level, budget full-suspension bike test. But with the category shifting to embrace the improved rollover and stability that bigger 29in wheels bring to trail riding, it had to step aside and make way for the new Faultline A1. Need to know: Sag gradients on the RockShox Deluxe shock make suspension set-up easy Available in four frame sizes, S to XL all with very slack seat tube angles Light wheels and 120mm travel make the Faultline more XC focused No chainstay protection and rattly cables make for a percussive ride Boasting 120mm of suspension at the rear, the Faultline A1 29 doesn’t quite live up to its freeride sounding name as the travel puts it more at the XC end of the trail bike continuum. The sleek, alloy frame has a lot in common with its smaller wheeled sibling, where both use Jamis’s signature MP2 suspension, a single pivot design that places the shock directly under the top tube. Internal cable routing gives the Faultline frame a smooth clean appearance, but even when we were assembling the bike we noticed that the cables rattled inside the down tube. So while you can’t see them, they’ll make themselves known to you and everyone you’re riding with. Captured cable entry and exit ports are needed to keep the cables tight, or, at the very least, foam cable covers to reduce the rattle. A rubber chainstay protector wouldn’t go amiss either, as it would reduce some of the chain noise and protect the paint on the chainstay too. Hydroformed tube profiles give the Faultline frame an organic feel, but Jamis seems to have taken a firehose approach to the seat tube, with its rather dramatic kink. And it doesn’t just look dramatic, it dramatically impacts the riding position and handling of the bike. With a seat tube angle that’s slacker than the head angle, the saddle is really far behind the bottom bracket. It also skews the top tube measurement; the size L Faultline measuring 670mm. That’s a whopping 50mm longer than the Vitus or Polygon, even though the Jamis has a much shorter reach measurement. In fact, it’s such an outlier in that regard, we can only assume that someone messed up on the original design and the mistake made it all of the way into production. Suspension In keeping with the more XC oriented ride, the rear suspension on the Faultline has been configured to provide extra support around the sag position to keep pedalling efficiency high. The RockShox Deluxe Select+ RL shock also has a lot of compression damping, even on the open setting. So much so that we ran the rebound damping fully open to try to compensate, but even then it still didn’t ping back to the sag position as quickly as we’d have liked and that’s with an 80kg rider so any lighter and you’ll struggle then to get a half-decent suspension set up. Combine the heavy-handed …Continue reading »

Highs
  • Impressive specification

Lows
  • Seat tube is way too slack

Read Review

Geometry
Specs
Build
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

BB StandardBSA, Threaded

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

Travel130mm

Spring TypeAir

Bottom Bracket

Race Face BSA

Headset

FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer

Stem

Race Face Ride, 50mm

Handlebar

Race Face Ride, 35 x 760mm

Saddle

WTB Volt

Seatpost

KS Rage Dropper, Southpaw remote

TypeDropper

Pedals

N/A

Grips

Jamis Lock-On

Groupset
Rear Derailleur

Shimano SLX, 12-speed

Crank

Race Face Ride, 32T

Shifters

Shimano SLX, 1×12-speed

Cassette

Shimano M7100, 12-speed, 10-51T

Chain

KMC X12, 12-speed

Brakes

Shimano MT401 hydraulic disc, 180mm front & 160mm rear RT30 rotors

TypeShimano Hydraulic Disc

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

Rider Notes
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First added April 12

Last updated March 25

Not listed for 1,161 days