Whether you are rolling into the CBD from Palmerston, linking up Darwin’s shared paths, or heading out on corrugated backroads towards Berry Springs, the Avanti Gran-Durance 1 Olive is built to handle it all. This versatile gravel bike combines a lightweight alloy frame, confident disc brakes and wide gravel tyres to give Darwin riders a fast, comfortable and reliable all-rounder.

Built for mixed Darwin terrain

The Gran-Durance 1 uses a light, thru-axle Formtech/Ultra Lite butted alloy gravel frame with modern gravel geometry, giving you a stable, confident ride on both sealed roads and rougher NT backroads. The matching alloy gravel fork has clearance for up to 700x45–50c tyres (model-dependent), so you can run the stock 700x40c tyres or size up for more comfort on dirt and corrugations. Internal cable routing keeps the bike clean and low-maintenance in Darwin’s wet season, and the frame is dropper-post compatible if you want extra control on steep or loose terrain.

Wide-range 2x10 gravel drivetrain

Avanti equips the Gran-Durance 1 with a wide-range 2x10 gravel drivetrain, using the Microshift Sword 2x10 system on current models. The compact double chainring (typically 30/46T) paired with a wide 10-speed cassette (up to 11–38T) gives you enough low gears for loaded bikepacking and steep dirt climbs, while still providing taller gears for fast road sections into a headwind. Clutch rear derailleur tech helps keep the chain quiet and secure over rough surfaces, ideal for gravel roads around Howard Springs or rail trails when travelling.

Confident stopping power

Tektro MD-C550P dual-piston mechanical disc brakes deliver reliable stopping in Darwin’s sudden tropical downpours and on dusty outback roads. Paired with 160 mm rotors front and rear, they provide strong, predictable braking control without the complexity of hydraulics, making them easy to maintain for everyday commuters and tourers.

Gravel-ready wheels and tyres

The Avanti Gran-Durance 1 rolls on light, wide alloy rims laced to through-axle hubs, giving a strong and responsive wheelset for rougher surfaces. 700 x 40c Kenda gravel tyres strike a sweet spot: they roll quickly on Darwin’s smooth bitumen but offer plenty of grip and puncture resistance on gravel, bike paths with debris and wet-season washouts. With clearance for wider rubber, you can upsize tyres if you plan more remote NT touring or softer dirt tracks.

Comfortable, upright ride position

The Gran-Durance platform is designed with a comfortable, slightly more upright riding position than a traditional road bike, making it ideal for commuting, fitness and long weekend rides around the Top End. A flared alloy gravel handlebar gives you multiple hand positions and extra control on loose surfaces, while the shock-absorbing bar tape and quality Syncros saddle help smooth out rough chipseal and gravel.

Practical features for daily use

With multiple frame mounts, the Avanti Gran-Durance 1 is ready for racks, guards and extra bottle cages, so you can build it into a year-round Darwin commuter or NT bikepacking rig. The olive colourway gives it a subtle, adventure-ready look that suits both city rides and outback trips, while durable alloy components keep weight down and maintenance simple.

Key Specifications

(Exact spec may vary slightly by model year and size; use this as product-page copy rather than a strict tech sheet.)

• Frame: Ultra Lite / Formtech butted alloy gravel frame, 142x12 mm thru-axle, gravel geometry, disc, dropper compatible.

• Fork: Alloy gravel fork, 1.5–1 1/8 in steerer, 100x12 mm thru-axle, flat-mount disc, clearance up to approx. 700x45–50c tyres.

• Drivetrain: 2x10 wide-range gravel groupset (Microshift Sword on current models) with clutch rear derailleur.

• Crankset: Compact double, around 30/46T for climbing-friendly gearing.

• Cassette: Wide-range 10-speed, up to approx. 11–38T for steep climbs and loaded touring.

• Brakes: Tektro MD-C550P dual-piston mechanical disc brakes with 160 mm rotors front and rear.

• Wheels: Double-wall alloy rims with thru-axle hubs, 700c.

• Tyres: Kenda gravel 700x40c, fast-rolling with multi-surface grip and puncture protection.

• Cockpit: Flared alloy gravel handlebar, forged alloy stem, integrated headset with internal cable routing.

• Contact points: Shock-absorbing bar tape, Syncros saddle, alloy seatpost for durability.

• Colour: Olive.

Ideal rider and use cases in Darwin

The Avanti Gran-Durance 1 Olive is ideal for riders who want one bike to handle Darwin’s weekday commutes, weekend fitness rides and gravel exploring without swapping bikes. It suits riders looking for a capable, value-packed gravel bike that can carry racks and bags, handle wet-season conditions and still feel fast on smooth tarmac.