The ION BMX Ti18 Custom Titanium 18 Inch Bike is a lightweight freestyle BMX with sleek black wheels—ideal for riders seeking both style and top performance.
An ION BMX Ti18 Custom Titanium 18 Inch Bike is shown on a white background, featuring a metallic titanium frame, black seat, and black tires. This lightweight freestyle BMX bike offers superior performance and durability.
Close-up of an ION BMX Ti18 Custom Titanium 18 Inch Bike, featuring lightweight handlebars with a pink stem, a front tire with “Vans” branding, and a metallic frame, all set against a white background.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike's front wheel, showcasing a pink hub, silver spokes, and a black tire with bold "DN BMX" branding—emphasizing its lightweight freestyle BMX build.
A close-up of the lightweight ION BMX Ti18 Custom Titanium 18 Inch Bike, highlighting its sleek design and durable titanium build tailored for freestyle BMX riding.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike's crankset, chainring, pedals, showing its sleek titanium frame tubing, black tire, and chain.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike, featuring a metallic frame, pink crankset and headset, black pedal, and a black front tire with "Vans" branding—perfect for lightweight freestyle BMX riding.
Close-up of the rear wheel on an ION BMX Ti18 Custom Titanium 18 Inch Bike, showing the tire, spokes, chain, and rear hub. "TURBINE" appears on the rim, emphasizing this bike's lightweight freestyle performance.
A close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike, highlighting its lightweight freestyle frame, sleek design, and premium build quality.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike’s rear wheel hub, showing metallic spokes, chain, silver frame, detailed mechanical parts, and a tire with reflective accents on this lightweight freestyle BMX.
Close-up of the chain, rear wheel, and metallic pink sprocket on an ION BMX Ti18 Custom Titanium 18 Inch Bike—a lightweight option ideal for freestyle BMX riding.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike handlebar with a metallic pink stem, silver bolts, brushed titanium frame, and a knobby front tire—ideal for lightweight freestyle BMX riding.
Close-up of a black BMX seat on the ION BMX Ti18 Custom Titanium 18 Inch Bike, highlighting its lightweight freestyle build. A knobby rear tire appears in the background, emphasizing the bike’s style and performance.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike's chrome handlebars with a pink stem clamp, set against a white background.
Close-up of the ION BMX Ti18 Custom Titanium 18 Inch Bike’s silver front frame, with a pink handlebar stem and black tire—highlighting its lightweight titanium design for freestyle BMX riders.
The ION BMX Ti18 Custom Titanium 18 Inch Bike, a lightweight freestyle model with black tires, black seat, and pink handlebar and fork accents, is displayed in side profile against a white background.

Description

The ION BMX Ti18 defines ultra-lightweight freestyle excellence. Titanium construction spans the ION BMX Ti18 frame, IONBMX Ti18 forks, IONBMX Ti bars, ION BMX Ti stem bolt, IONBMX Titanium hub bolts, and Spectre V2 Titanium spokes working seamlessly with Carbon C18 rims to achieve exceptional rigidity at minimal weight. This 18" platform delivers what few competitors accomplish: genuine mass reduction paired with structural integrity. Paired with Colony's Rose Gold limited edition hubs, stem, sprocket, post and headset, it's purpose-built for elite riders demanding the lightest, most responsive freestyle machine on the market.

Features
  • Titanium frame, forks and bars. The Ti18 frame, 26mm offset forks and 8" bars are all titanium, so the whole bike loses weight without losing rigidity.
  • Carbon C18 rims, titanium spokes. ION C18 carbon rims laced 36H with Spectre V2 titanium spokes and DT aluminium nipples: stiff wheels at very little weight.
  • 7.28kg complete. Genuine mass reduction without giving up structural integrity, right down to the ION titanium hub and stem bolts.
  • Colony Rose Gold limited parts. Wasp Lite hubs with a 9T aluminium driver, a Variant 35mm stem, CC 25T sprocket, Pivotal post and tall integrated headset.
  • 18" platform, no brakes. An 18" top tube, 11.6" chainstay and 75° head angle, built for riders chasing the most responsive freestyle setup.

Specifications
  • Size: 18" wheels, 18" top tube
  • Frame: ION BMX Ti18 titanium, 18"
  • Top tube: 18"
  • Chainstay: 11.6"
  • Head tube angle: 75°
  • Seat tube angle: 71°
  • Standover: 8"
  • Bottom bracket height: 10.6"
  • Fork: ION BMX Ti18 titanium, 26mm offset
  • Headset: Colony Tall Integrated, Rose Gold
  • Stem: Colony Variant 35mm Rose Gold, ION titanium stem bolts, counterbore
  • Bars: ION BMX titanium, 8" rise, 10° backsweep, 2° upsweep
  • Grips: ODI Longneck SL
  • Brakes: None fitted
  • Cranks: Colony Venator 140mm, brushed
  • Bottom bracket: Colony Mid 22mm, Rose Gold
  • Sprocket: Colony CC 25T, Rose Gold
  • Chain: KMC K1SL
  • Pedals: Colony Fantastic Plastic
  • Front hub: Colony Wasp Lite Rose Gold, 36H, ION titanium hub bolts
  • Rear hub: Colony Wasp Lite Rose Gold, 36H, 9T aluminium driver, ION titanium hub bolts
  • Spokes: Spectre V2 Titanium Silver, DT aluminium nipples
  • Rims: ION BMX C18 carbon fibre, 36H front and rear
  • Tyres: Cult x Vans Waffle, 18 x 2.3"
  • Tubes: CST 18", Schrader valve
  • Seat: Cult x Vans Oldskool Pro
  • Seat post: Colony Pivotal, Rose Gold
  • Weight: 7.28kg
  • Note: Head tube height 4.25", fork offset 26mm.

Assembly information

Your bike ships mostly assembled in the box. Finishing it takes most people 10 to 20 minutes with basic tools, and the video above walks through every step.

  • Fit the handlebars and line them up with the front wheel
  • Fit the front wheel, pedals and seat post
  • Check the brakes and tyre pressure before the first ride

Tools: Allen key set and a 15mm, 17mm or 19mm spanner for the pedals and axle nuts (bikes can vary between these three sizes). A socket is needed if installing pegs.

Rather have it done? Ask us about extra assembly before you order, or any local bike shop can finish the build for a small fee.

ION BMX Ti18 Custom Titanium 18 Inch Bike

Brand: ION BMX SKU:

From

$4,999.99 AUD

 $5,895.57 AUD

Or 4 payments of $1,249.99 AUD with

Colour - Titanium

Top Tube Length - 18

18 inch BMX sizing

An 18 inch bike suits a rider of about 122 to 147cm, usually 7 to 11 years old, on an 18 to 18.5 inch top tube. It is the last step before a full size 20 inch.

Rider heightWheel sizeTop tube
60 to 91cm12"12 to 12.5"
81 to 106cm14"14 to 14.5"
96 to 122cm16"16 to 16.5"
122 to 147cm18"18 to 18.5"
147 to 157cm20"19.75 to 20.25"
157 to 168cm20"20 to 20.5"
168 to 175cm20"20.25 to 20.75"
175 to 183cm20"20.5 to 21"
183 to 190cm and up20"20.75 to 21.5"
160cm and up22"21 to 22.25"
160cm and up24"21.75 to 22"
160cm and up26"22 to 23"

Sizes overlap on purpose, so personal preference comes into it. If your rider is near 147cm and still growing, look at a 20 inch instead: it is the size they will keep riding.

How to measure

Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.

  • Between an 18 and a 20? Take the 20. It is the size they will keep riding, and an 18 gets outgrown quickly.
  • They should be able to stand over the top tube with both feet flat on the ground.

Not sure? Send us their height and we will tell you what we would put them on.

Read the full buying guide

18 inch BMX sizing

An 18 inch bike suits a rider of about 122 to 147cm, usually 7 to 11 years old, on an 18 to 18.5 inch top tube. It is the last step before a full size 20 inch.

Rider heightWheel sizeTop tube
60 to 91cm12"12 to 12.5"
81 to 106cm14"14 to 14.5"
96 to 122cm16"16 to 16.5"
122 to 147cm18"18 to 18.5"
147 to 157cm20"19.75 to 20.25"
157 to 168cm20"20 to 20.5"
168 to 175cm20"20.25 to 20.75"
175 to 183cm20"20.5 to 21"
183 to 190cm and up20"20.75 to 21.5"
160cm and up22"21 to 22.25"
160cm and up24"21.75 to 22"
160cm and up26"22 to 23"

Sizes overlap on purpose, so personal preference comes into it. If your rider is near 147cm and still growing, look at a 20 inch instead: it is the size they will keep riding.

How to measure

Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.

  • Between an 18 and a 20? Take the 20. It is the size they will keep riding, and an 18 gets outgrown quickly.
  • They should be able to stand over the top tube with both feet flat on the ground.

Not sure? Send us their height and we will tell you what we would put them on.

Read the full buying guide

Discount 15%

Instead of $5,895.57

$4,999.99 AUD

Price match request

ION BMX Ti18 Custom Titanium 18 Inch Bike - Titanium / 18

Metro bike shipping from $39.99

Regional and remote rates may differ

Free in-store pickup - Brisbane

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