Gravity

Gravity fsxhd1 FSX 29 HD 1.0 Full Suspension Mountain Bike

Name: Gravity fsxhd1 FSX 29 HD 1.0 Full Suspension Mountain Bike
Brand: Gravity
SKU: fsxhd1

Charge into technical singletrack with a full-suspension platform that absorbs the hits and keeps your 29-inch wheels rolling forward.

$599.00*

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

On a trail where roots cross the line and loose rocks test your nerve on every descent, the difference between a hardtail and a full-suspension bike stops being theoretical. The Gravity FSX 29 HD 1.0 is built to put real trail capability within reach of riders who want front-and-rear suspension without stepping into high-end pricing. The long-travel fork handles chunky front-end hits while the adjustable rear coil-over shock tracks the ground on technical lines, keeping the rear wheel planted where a rigid rear triangle would deflect. Pair that with 29-inch double-wall rims that roll over trail debris with momentum, hydraulic disc brakes that modulate predictably on steep descents, and a genuine Shimano 24-speed drivetrain for climb-to-descent range, and you have a trail-ready platform that performs across varied terrain.

The frame is built from aluminum with CantiBeam SinglePivot Technology, balancing stiffness for efficient pedaling with enough flex compliance for extended sessions. Four frame sizes — 15in through 21in — mean adult riders across a range of heights can find a proper fit rather than compromising on geometry. The fork lock-out is a practical field feature: flip it before a long fire road climb, open it up before dropping into technical trail. At 45 pounds, the bike is honest about its price-point trade-offs — it won't feel like a lightweight trail whip — but the chassis durability and component spec deliver performance that holds up across repeated hard-use sessions. Maintenance expectations are consistent with any full-suspension bike: inspect bearings, service the shock periodically, and keep the fork seals clean.

Key Features

Powerful Hydraulic Disc Brakes

Advanced LongTravel FORKS

FULL Genuine Shim. DriveTrain

Adjustable Rear Coil-Over Shocks

Specifications

Brake Type

Hydraulic Disc Brakes

Suspension Type

Full Suspension

Shocks

Adjustable Rear Coil-Over Shocks

DriveTrain

Genuine Shimano DriveTrain

Pros & Cons

👍 Pros

The adjustable rear coil-over shock absorbs repeated impacts on rooted and rocky singletrack, keeping rear wheel traction without the fatigue transfer of a hardtail.
Hydraulic disc brakes deliver reliable, modulated stopping power in wet or muddy descents where cable brakes lose feel and consistency.
29-inch wheels with double-wall rims roll over trail obstacles more smoothly than 27.5-inch setups, carrying momentum through rough sections.
The fork lock-out lets you switch to a stiffer, more efficient pedaling platform on climbs and fire roads without changing the rear suspension setup.
Four available frame sizes make it accessible to a wider range of adult rider heights without significant geometry compromise.

👎 Cons

At 45 pounds, this bike is on the heavier side for a full-suspension trail bike — you'll feel that weight on long climbs or whenever you need to carry the bike over obstacles.
The coil-over rear shock is not adjustable for rider weight beyond basic preload settings — riders at the extremes of the weight range may find the suspension feel either too stiff or too soft.
The advanced aluminum frame, while durable, does not offer the vibration damping characteristics of carbon fiber, which becomes noticeable on long, rough descents.
Full suspension maintenance — bearing checks, shock service, fork seal cleaning — requires more time and mechanical knowledge than a hardtail demands.
At 45 pounds, transport in a vehicle without a proper bike rack or loading assistance is awkward compared to lighter trail bikes.

Frequently Asked Questions

Is this bike appropriate for aggressive trail riding, or is it better suited to casual paths?

The FSX 29 HD 1.0's full suspension setup — long-travel fork with lock-out and adjustable rear coil-over shock — is designed for real trail riding with roots, drops, and variable terrain. The hydraulic disc brakes and 29-inch double-wall rims back that up. Casual riders will find it capable, but the spec sheet is aimed at trail-focused cyclists.

What size frame should I choose?

The FSX 29 HD 1.0 comes in four frame sizes: 15in, 17in, 19in, and 21in. Generally, 15–17in suits riders roughly 5'2"–5'8", 19in covers 5'8"–6'0", and 21in is for taller riders. Check standover height and reach measurements for your build before ordering.

How does the fork lock-out work, and when should I use it?

The lock-out switch on the advanced suspension fork stiffens the front end to reduce pedaling bob on flat or uphill sections. Engage it on fire roads or climbs to improve efficiency, and open it back up before hitting technical descents or rocky terrain.

How do the hydraulic disc brakes perform in wet or muddy conditions?

Hydraulic discs maintain consistent stopping power in wet and muddy conditions far better than mechanical cable-actuated brakes. On the FSX 29, this means reliable modulation regardless of whether the trail is dusty, wet, or covered in debris.

What does the Shimano 24-speed drivetrain offer for varied terrain?

The genuine Shimano drivetrain gives you a wide gear range to spin up steep climbs without grinding and to maintain speed on flat sections. 24 speeds provides enough range that most trail gradients are manageable without running out of gears.