Home»WHEELS HUBS TYRES & BEARINGS»Complete Wheels - By Tyre Size»9 Inch Wheels»3 Spoke PRIMO Composite hub - 9 Inch Wheel»Custom 9 inch Primo Wheel - Primo 3 Spoke composite Hub with 9 Inch Tyre

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PRIMO's 3 Spoke Composite Hub has a center set bearing position & because of its special '3.75/4 Inch Rim' means it is capable of fitting both 3.75 Inch Rim Tyres (8 Inch Tyres) & 4 Inch Rim Tyres (9 inch Tyres). 

The 3 Spoke PRIMO hubs are assembled using just 3 heavy duty M6 x 30mm Stainless Steel Socket capped Bolts & M6 Nylock nuts. The Composite hub is very Strong but a bit Chunky. IMO its best fitted with 9 Inch Tyres or Any tyre using a 4 inch Rim.

Because of the extra size of this hub it is strong ebough for many applicatuons. When comparing the weight to the super slim design of the PHATLADS hubs (weighing just 184g), the PRIMO 3 Spoke hub weighing 282g does weigh in a little on the heavy side, but the 3 spoke'd solid structure is a timeless classic with an awesome reputation for not letting you down & is currently the only option hub that TRAMPA offers should you wish to mount 'Center-Set 9 inch Wheels'

Although slightly tighter to fit into than other hubs, TRAMPA's regular 28mm Bearings will fit perfectly into the Bearing housing of the PRIMO hub. As a top tip place the bearings in the freezer for 30 minutes before inserting them into the hub, the cold will cause the metal of the bearing to shrink & fit easier into the hub!

To fit the PRIMO 3 spoke hubs onto the TRAMPA TRUCKS you will need a special 12x 9.5mm Axle Spacer to allow the hub to position onto the axle correctly.

Bearings can be purchased at a discounted price when purchased with Hubs.

9 INCH Inner Tube INNOVA 9x2.5 Inch 225x65mm - fits 45 inch Rims & 9 inch tyres

INNOVA's Re-enforced 9 Inch inner tube measures 225mm x 65mm and will fit into all the of the 9 inch Tyres on the TRAMPA website. This 9 Inch Inner Tube will also fit into the tyres of other brands. Being made from slightly thicker rubber, this Inner Tube is slightly heavier than alternatives but the Inner Tube will handle much higher than recommended inflation rates... Therefore this INNOVA inner tube is ideal for heavier or pro riders seeking high inflation pressures...

This INNOVA Inner tube will fit into all known 9 inch tyres as well as most ATB Hubs on the market & it comes as expected with a "Plastic Anti Dust" Valve cap!

Punctures Suck! Its always possible to get a puncture in the environments we ride in, so always carry a spare if you don't want your day spoiling...

PRIMO 3 spoke Hub - Fits the 9 inch stiker tyre

PRIMO's 3 Spoke Composite Hub has a center set bearing position & because of its special '3.75/4 Inch Rim' means it is capable of fitting both 3.75 Inch Rim Tyres (8 Inch Tyres) & 4 Inch Rim Tyres (9 inch Tyres). 

 The 3 Spoke PRIMO hubs are assembled using just 3 heavy duty M6 x 30mm Stainless Steel Socket capped Bolts & M6 Nylock nuts. The Composite hub is very Strong but a bit Chunky. IMO its best fitted with 9 Inch Tyres or Any tyre using a 4 inch Rim.

Because of the extra size of this hub it is strong ebough for many applicatuons. When comparing the weight to the super slim design of the PHATLADS hubs (weighing just 184g), the PRIMO 3 Spoke hub weighing 282g does weigh in a little on the heavy side, but the 3 spoke'd solid structure is a timeless classic with an awesome reputation for not letting you down & is currently the only option hub that TRAMPA offers should you wish to mount 'Center-Set 9 inch Wheels'

Although slightly tighter to fit into than other hubs, TRAMPA's regular 28mm Bearings will fit perfectly into the Bearing housing of the PRIMO hub. As a top tip place the bearings in the freezer for 30 minutes before inserting them into the hub, the cold will cause the metal of the bearing to shrink & fit easier into the hub!

To fit the PRIMO 3 spoke hubs onto the TRAMPA TRUCKS you will need a special 12x 9.5mm Axle Spacer to allow the hub to position onto the axle correctly.

Bearings can be purchased at a discounted price when purchased with Hubs.

9 inch Tyres measure 4x 2.5x 9 Inch 230x75x with 4 Inch Rim will fit to all 4 inch Hubs

9” Wheels are a huge advantage when riding on challenging off-road terrain. The Larger circumference allows for a higher rolling speeds, while the extra width provides more grip.

9” PRIMO STRIKER TYRE’s design brief was styled towards fast riding on hard packed dirt surfaces. Made using a hard rubber compound with a Wide Center Bead to help achieve maximum rolling speeds. The close cut grip pattern around the sides of the tyre gives loads of grip on all kinds of changeable terrain. Using Harder Rubber makes the STRIKER Tyre very fast whilst hard-wearing.

9” INNOVA INLINE TYRE has a straight cut profile that make it the perfect grip option for easy rolling. Working best on hard surfaces, such as Skate parks, Tarmac or Asphalt. The 3mm deep INLINE grooved surface, encourages the tyre to "Track" in a straight line.

9" MUD PLUGGER TYRES are the perfect grip choice when the riding conditions turn bad & you need the maximum amount grip! The Mud-Plugger tyre has a wide center bead, giving good top end roll speed, but is also deeply grooved with aggressive Grip around its sides Mud-Pluggers works best in bad conditions!

9" DIAMOND TREAD TYRES are an amazing all-round choice for off-road riding. Hard compound rubber allows for fast rolling speeds, whilst the aggressive grip pattern provides amazing grip on both hard & soft dirt.

ALL 9” TYRES will fit TRAMPA’s PRIMO 3-SPOKE or 9” DEEPDISH MEGASTAR Hubs