Longterm Review | 2019 Giant TRX 1 Carbon Wheelset

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After four months of testing, Wil gives us his longterm review of the Giant TRX 1 carbon 29er wheelset

Giant has been producing wheels for a good few years now, primarily for its own range of mountain and road bikes, but also for the aftermarket too.

For 2019, the Taiwanese manufacturer has completely revamped its line of carbon fibre hoops. There’s the lightweight XCR carbon wheelset that you’ll find spec’d on lightweight XTC hardtails and Anthem full suspension race bikes. Then there’s the burlier TRX carbon wheelset, which is spec’d on select Trance and Reign models.

giant trx 1 29 carbon wheel
Giant has redesigned its carbon mountain bike wheel range for 2019.

According to Giant, the TRX is its strongest off-road ‘WheelSystem’ – a reference to the fact that while made up of individual components (hubs, spokes, nipples and rims), this wheel is designed to perform as a complete, single component.

The wheelset I’ve been testing is the TRX 1, which came stock on the 2019 Trance Advanced Pro 29er 1 (check out my separate review here). The TRX 1 is also available separately in the US and Australian markets, though at this point in time, not in the UK.

2019 giant trance advanced giant trx 1 29 carbon wheel
The TRX 1 comes on a variety of stock Giant bikes, including the Trance 29.

New ‘Impact Resistant’ Carbon Rims

The main change over previous TRX wheelsets is found in the new carbon fibre rims, which purportedly bring a 40% increase in impact strength. Knowing full well that mountain bike rims – whether they’re alloy or carbon – get absolutely punished during their finite lifespan, Giant has utilised all the tools available in its manufacturing arsenal to make these rims as resistant to harsh impacts as possible.

The rims measure a huge 37mm wide externally, and 30mm internally. They feature a hookless profile with blunt, 3.5mm thick beads. These are reinforced at the base with thicker carbon walls to better distribute impact forces when the tyre bottoms-out on the rim.

Harder to see are the internally reinforced spoke holes. Not unlike Santa Cruz’ Reserve rims, Giant has built up the wall thickness around each of the 28 spoke holes. The key difference being that the bumps are on the inside of the rim rather than on the outside.

giant trx 1 29 carbon wheel rim
The new rim profile uses 3.5mm thick hookless beads for maximum strength.
giant trx 1 29 carbon wheel
Spoke holes are reinforced on the inside with thicker carbon walls.

Hubs & Spokes

In the TRX line, there are two different wheelsets; the TRX 1 (tested) and the higher-end TRX 0. These wheels use exactly the same carbon rims, but feature different spokes and hubs.

On the TRX 1 here we’ve got DT Swiss made 360 hubs, along with Sapim Lazer spokes. In comparison, the TRX 0 upgrades to DT Swiss 240 hubs and Sapim Super spokes. Weight drops by about 100g for the complete wheelset, and the price goes up to $2,035 AUD / $2,011 USD.

giant trx 1 29 carbon wheel
The TRX 1 29er wheelset comes in at just over 1800g with the tubeless tape and valves.

Giant TRX 1 29 Composite MTB Wheel Specs

  • Hookless carbon fibre rims
  • Internal rim width: 30mm
  • External rim width: 37mm
  • Depth: 25.8mm
  • DT Swiss 360 hubs w/sealed cartridge bearings & 6-bolt rotor mount
  • 3-pawl freehub mechanism w/24 points of engagement
  • Shimano & SRAM XD freehub body options
  • Boost hub spacing only
  • 28x Sapim Laser straight-pull spokes per wheel w/alloy Secure Lock nipples
  • Dynamic Balanced Lacing technology
  • Also available in 27.5in diameter
  • Claimed weight: 1750g
  • Confirmed weight: 1802g (w/included tape & valves)
  • 2-year warranty for original owner
  • From: Giant Bicycles
  • RRP: $1,399 AUD (approx £760)
giant trx 1 29 carbon wheel tubeless valve
Tubeless setup has been totally hassle-free on these hoops.

Installation

 

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Review Info

Brand:Giant Bicycles
Product:TRX 1 29 Composite MTB WheelSystem
From:giant-bicycles.com
Price:$1,399 AUD / $1,182 USD
Tested:by Wil Barrett for 4 months

Comments (1)

    Popped a DT350 hub with a 54t ratchet into my TRX 1 wheelset. A very nice upgrade to a really good wheelset

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