Home»WHEELS HUBS TYRES & BEARINGS»Complete Wheels - By Tyre Size»9 Inch Wheels»3 Spoke PRIMO Composite hub - 9 Inch Wheel»3 Spoke PRIMO Hub & 9 Inch STRIKER 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.

M6 x 30mm Socket Capped Allen-Key Bolt for primo hub - Marine Grade Stainless steel

TRAMPA's M6 x 30mm Socket Capped Bolt is made using A4 Marine Grade Stainless Steel. This Bolt is used to assemble the PRIMO 3 Spoke Hubs. The socket capped head of the Bolt screws neatly though the HUB eventually screwing into the Marine Grade Stainless Steel M6 Nylock Nut on the other side of the hub. 

Weighing just 8 grams each, these Bolts are lightweight, look very sexy & are totally non corrosive. Using Marine Grade Stainless Steel, means these Bolts will never rust on you! They can cope with the most harsh of weather conditions & they laugh in the face of sandy/salty beaches or muddy freeride tracks, which do turn other manufacturers nuts & bolts into corrosive rusting wrecks! As well as being Non Corrosive all of the TRAMPA Bolts are diped in BLUE THREAD LOCKING PASTE to ensure an extra strong secure fix between the Nut & the Bolt.

You’ll will need a 5mm Allen Key  to tighten & loosen the Bolt from the nut. Ensure all your Nuts & Bolts are tight before riding!

M6 Nut - Marine Grade Stainless steel Nylock Nut - Fixes Bindings & Trucks to Deck

Introducing TRAMPA's M6 (6mm Thread) A4 Grade Marine Grade Stainless steel Nylock Nut. This Nylock Nut will fit to all M6 Bolts regardless of their length. This A4 Marine Grade Stainless Steel Nut will never rust on you! It is fitted with the world renowned NYLOCK System (Nylock is a nylon locking system where Nylon is pasted into the threads of the nut so that when the bolt is tightened into the nut the nylon grabs the thread of the bolt holding it locking it in the thread ensuring things do not vibrate loose or fall off when being ridden on rough terrain like that which a Mountain or Kiteboard endures. The NYLOCK System is fitted as standard to all TRAMPA Nuts. 

This Nut is used to fix to the Regular shaped M6 Bolts that hold the TRUCKS to the DECK for the HOLYPRO Decks & also for the countersunk bolts connecting the L BRACKETS TO the DECKs. Use an 10mm spanner or SOCKET for a Ratchet Driver to tighten the Nut onto the Bolt. Always ensure your Nuts & Bolts are tight before you ride!

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.

PRIMO STRIKER 9 Inch Tyre measure 4x 2.5x 9 230x75mm with 4 Inch Rim fits all 4 Inch Hubs

PRIMO's 4 x 2.5 x 9 Inch STRIKER Tyre design brief is styled towards fast riding on hard packed dirt surfaces. It is made using a hard rubber compound with a wide Center Bead to help achieve & maintain maximum rolling speeds, whilst the close cut grip pattern around the sides of the tyre gives loads of grip on all kinds of changeable terrain's. Using Harder Rubber makes the STRIKER Tyre very fast whilst still hard-wearing, The PRIMO STRIKER is a great Tyre option for riding on any Solid surfaces from dusty dirt tracks to hard packed asphalt. 

Incorporated into the Rims of the tyre are 4 Inch wide Steel Bands. As the Rims are 4 Inch's wide this means that the 9 Inch PRIMO STRIKER tyre is too big to fit onto the regular 3.75 Inch TRAMPA hubs & therefore the 9 Inch Striker tyres will only fit onto TRAMPA's 4 Inch Rimmed hubs, ie the PHATLADS, the 4 Inch Rim MEGASTARS or the PRIMO 3-Spoke Composite Hubs 

Larger wheels will travel better over bumpier or softer ground making them great for Electric board cruising or kiteboarding down the beach if the sand is soft. When the tyres are inflated to they measure 225mm in Diamter & 65mm wide.

Regular sized Threads (TPI) tie the 4 Inch Steel bands together giving the 9 Inch PRIMO STRIKER tyre the strength & structure to be inflated up to the recommended factory inflation pressures. The more you inflate your Tyres the faster you will roll! If you over inflate the Tyres it is possible they will explode which may cause you serious injury! The official maximum inflation pressure set by the factory for the 9 inch STRIKER Tyre is 50psi,  If you do decide to go beyond the max inflation pressure ensure your nuts & bolts are tight before inflating & deflate back to a regular pressure after use. 

If you are using a 9 Inch Tyre with an electric kit then you should use 76 Tooth Pulleys if using Belts or 9:63 Gearing if you are using Spur Gears