Home»WHEELS HUBS TYRES & BEARINGS»Complete Wheels - By Tyre Size»8 Inch Wheels»HYPA Wheels with 8 Inch Tyres »Custom TRAMPA Wheel for 9.525mm Axels

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The 6 Spoke HYPA Wheel is the lightest & strongest plastic injected Hub / Wheel on the market today! Its produced using original DuPont ingredients & the best Injection Moulding machinery, no quality expense is spared during the production of this amazingly strong little hub!

During testing the HYPA Wheels performance surpassed all expectations. :-) This little 8 inch wheel proved to be so strong, when the "Crash Test Dummies" (i mean the Mountainboard Team Riders) inflated their tyres well beyond factory recommendations! (Tut-Tut Naughty-Naughty!) The extra inflation resulted in substantially faster roll speeds, giving them the extra time in the air to complete their huge freestyle moves & still have time land in 1 piece! I'm pleased to tell you there were no explosions from the over inflation to report whilst breaking a HYPA HUB is just about unheard of, something extraordinary has to go wrong before these hubs do! If you have seen some of the crazy stuff the MTB & KTB teams have put the equipment through over the years, with genuinely almost no problems to report, you will have no doubt of the HYPA WHEELS performance capabilities.

HYPA Hubs are available in loads of coordinating colour combinations its difficult to make the decision as to which option you like the most! You can choose from naked Matt Black or White to Painted Gloss Red or Gloss Blue with Painted Black or White TRAMPA Logo's or Printed in Winter or Army Camo, the choice is all yours... :-)

TRAMPA's HYPA hubs are held together using Marine Grade (A4) Stainless steel Nuts & Bolts & will never rust on you. Our bolts are perfect for bad conditions. Not only will the nuts & Bolts never rust on you all the Bolts used by TRAMPA have been dipped in a special Blue Locking Paste, whilst all the Nuts that TRAMPA uses are fitted with the world renowned Nyloc nylon nut locking system, all of these no expense spared small details ensure you get the absolute best product possible! To help prevent you from purchasing imitations, TRAMPA's HYPA Hubs are always TRAMPA embossed between the spokes proving our top quality! 

Your tyre requirements will be defined by the surface you are riding on, however you will be pleased to read that all of the HYPA Hubs will fit into any of the 7 inch Tyres or 8 Inch Tyres on the TRAMPA website. TRAMPA Hubs are also compatible with all known 8 Inch Tyres that are currently on the market, including any other Mountainboard or Dirt Scooter brand.

TRAMPA’s very own & genuine ABEC 5 rated Bearings, push perfectly into the 'Centre Set' bearing housings either side of the hub. The bearings are supported internally by use of a 'Bearing Support Spacer' sitting on the axle in the middle of the hub, guaranteeing the position of the bearings & the smoothest spin rate possible. TRAMPA's Bearings will fit onto 9.525mm, 10mm & 12mm Axles. The metric measurement of 9.525mm, is equal to the US Imperial measurement 3/8ths of 1 inch. Bearing Reducer Sleeves downsize your 12mm Bearings to fit onto 10mm Metric Scooter Axles or 9.525mm (3/8ths of an inch) Imperial Skate Axles. Bearings can be supplied at 50% of the usual retail price when purchased with a wheel... 2x Bearings cost just £2.50 per pair (usually £2.50 each), resulting in a £10 saving per set of 8x bearings, 8 bearings are enough for a set of 4 wheels!

TRAMPA's 200mm x 50mm - 8 Inch wonder wheels are the primary choice sized wheel for many inventors developing sporting equipment requiring very strong whilst very light weight, small pneumatic wheels for their applications to work correctly. Mountainboards, Kiteboards, 2Wheel, Dirt-Scooters, Bikes Skates, Sledges, Trikes, Skikes, Model Planes, Single Seater Planes, Dog Sledding, Dirt Skiing, Transportation Chariots & now lots of exciting electronic applications all due to come to the market very soon, all require an 8 inch wheel for their best movement... If you have a wheeled project on the go & you would like to fit TRAMPA's 8 inch wheels onto it, then in your design you need to use a 12mm axle & you will need to give an axle mounting space of 34.2mm in order to fit the TRAMPA Hubs correctly.

M4 x 35mm Socket Capped Allen-Key Bolt - Marine Grade Stainless steel with locking paste

TRAMPA's M4 x 35mm Socket Capped Bolt is made using A4 Marine Grade Stainless Steel. This Bolt is used to assemble the TRAMPA HYPA HUBS. The socket capped head of the Bolt fits neatly into the Bolt housing of the HYPA HUB marrying into the M4 nut located in the housing on the other side of the hub.

Weighing just 3 grams each these bolts are very lightweight. They 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 will need a 3mm Allen Key to tighten & loosen the Nuts & Bolts from the hub. Ensure all your Nuts & Bolts are tight before riding!

M4 Nyloc Nut - Marine Grade stainless steel Nylock Nut - Hub Nuts

Introducing TRAMPA's M4 (4mm Shaft) A4 Marine Grade Stainless steel Nylock Nut. This Nylock Nut will fit to all M4 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 thread locking security System is fitted as standard to all TRAMPA Nuts. 

This Nut is used to fix to tighten to the M4 Socket Capped Bolts that hold the HYPA & SUPERSTAR hubs together. To fit the nuts M4 use an 8mm spanner or  8mm Ratchet Socket to turn the Nut onto the Bolt whilst holding the bolt with a 3mm Allen Key. Always ensure your Nuts & Bolts are tight before you ride!

Hypa Hub 3.75x 2 Inch - Matt Black

TRAMPA's 6 spoke HYPA Hub is by far the lightest & weight for weight compared, the strongest 3.75-inch hub on the market today!

The HYPA hubs 6 spoke design is technically advanced & is manufactured using original Du-Pont materials & the very latest in precision injection molding machinery - No quality expense is spared! This deluxe combination of technical design, top quality machinery & original genuine materials, creates a product that is far superior to all of our competitions, resulting in performance that is well beyond normal expectations. This extra performance means the TRAMPA HYPA hub can handle much higher than recommended tyre inflation pressures, generating substantially higher than normal roll speeds. Back in the day during testing, our crash test dummies (i mean the Team riders) commonly rode with these hubs well above 80psi & beyond.... 

The HYPA hubs are held together using only the best Marine Grade (A4) Stainless steel Nuts & Bolts so they definitely wont rust on you (EVER) & are therefore perfect for bad conditions. All the Bolts used by TRAMPA have been dipped in a special Blue Locking Paste & all the Nuts are fitted with the world renowned Nylon "Nylock" Nut locking System, all these no expense spared small details ensure you get the absolute best hub possible!

HYPA hubs are available in loads of different colours & surface finishes, all of which are TRAMPA embossed between the spokes proving the top quality! Do not buy imitations as they will not perform the same!  TRAMPA’s own high class Steel Bearings, (Genuine  ABEC 5 rated Bearings) push perfectly into the HYPA hub bearing housing, guaranteeing the fastest spin rate to the wheel possible. Use either Bearing reducer sleeves into 12mm Bearings or use TRAMPA's 10mm Bearings to fit the HYPA hubs onto smaller sized skate axles. HYPA hubs are compatible with all known 8-inch tyres currently on the market including MBS & Scrub. Put quite simply – HYPA hubs are by the Best!

Along with many other applications that these wheels will fit too, the HYPA hub will fit and accept ALL the other brands of mountain boards on the market including MBS, SCRUB & KHEO, so when you are looking for an upgrade to your ride you know where too look! Basically the HYPA Hub will fit to anything that uses a Imperial 7/16ths (9.52mm) or 12mm bearings to fit onto the axle. If you already have your own 12mm bearings there are conversion spacers available to convert your 12mm bearings to work on the 7/16ths Imperial (9.52mm) skate axles and a different size spacer to convert them to fit 10mm (metric) scooter axles (see associated parts for details).

Bearings are supplied at a discounted price when purchased with hubs...

Rim Diameter 3.75 Inch
Rim Width      2 Inch or 50mm
​Fits all Tyres with 3.75 Inch rim inflating up to 8 inch in Diameter

8 Inch Inner Tube PRIMO 8x2 inch 200x50mm - fits 3.75 inch Rims & 8 inch tyres

PRIMO's own 8 Inch Inner Tube has dimensions of 200mm (outer diameter) x 50mm (width) & will fit into all known 8 inch Tyres & ATB hubs on the market!

The CST PRIMO Inner Tube incorporates slightly thicker rubber into its manufacture process which means the tube is slightly heavier than alternatives but does allow the rider to inflate slightly higher. This extra thickness also gives some extra resistance to punctures, but punctures suck, so always carry a spare inner tube when you are riding as you never know when you might get one.  

The PRIMO Tube uses a 90º Brass Inflation valve which will not rust on you & comes as you would expected with a plastic "anti dust" valve cap!

PRIMO ALPHA 8 inch Tyre measure 3.75x 2x 8 Inch or 200x50mm with 3.75 inch Rim fits all 3.75 inch Hubs

The PRIMO ALPHA Lite tyre is a super light-weight Off-Road Tyre. Using just 2 PR of the finest grade rubber & incorporating a very high TPI under its skin combined together these secret details reduce weight considerably, making its reputation as the worlds best Off Road 8-inch Tyre! When inflated the PRIMO ALPHA Lite tyre measures 200x50mm. The Tyre incorporates a 3.75 inch Steel Band into the rim to hold everything in position & it slips onto the TRAMPA hubs perfectly. The ALPHA tyre will fit to all known hub Brands that are used for Mountainboarding & Kiteboarding. 

Made from relatively softish rubber the ALPHA tyre gives fantastic grip. Its design incorporates a wide center bead to allow & maintain straight line speed, whist its surrounding edges are beautifully sculptured wide grooves that supply high levels of grip regardless of the terrain type. - This tyre really is great for all off road applications.

The more you inflate your Tyres the faster you will roll!  The official maximum inflation pressure set by the factory for the ALPHA Tyre is 50psi, but the ALPHA Tyres are made so well & the TRAMPA Hubs are so strong that our Crash test Dummies (I mean Team Riders) have been known to inflate these Tyres well beyond their recommended pressures with no problems to mention. Over inflating your tyres may lead to an explosion which could seriously injure you. If you do decide to go beyond the max inflation pressure ensure your nuts & bolts are tight & deflate back to a regular pressure after use.