EXT Vaia 38.5Ø MTB Downhill & Enduro Fork | Cykel House Skip to main content
Ext vaia downhill fork
Ext vaia downhill fork
Ext vaia sliding du bushings
Ext vaia sliding du bushings
Ext vaia drop crowns
Ext vaia drop crowns
Ext vaia modular axle system
Ext vaia modular axle system
Ext vaia offset options
Ext vaia offset options
Ext vaia downhill fork
Ext vaia sliding du bushings
Ext vaia drop crowns
Ext vaia modular axle system
Ext vaia offset options
EXT

EXT Vaia 38.5Ø MTB Downhill & Enduro Fork

£ 2,290.00
Tax included.

This product is special order due to custom tuning. Orders normally arrive within 1 week if in stock with our supplier, please call us on 01977 520852 to discuss your personal tuning options


  • FREE Delivery on orders over £40
  • Standard delivery £4.99
  • Whippet delivery £7.99

T’s&C’s apply

At Cykel House, we are committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, contact us via email or via live chat and we'll see if we can match that price.

We do have some criteria to meet when offering a Price Match.

  • To request a Price Match, provide the URL to the competitor’s lower price. If in-store, you can show us on your phone or a printed copy.
  • The competitor must be a UK-registered shop. All our products are brand new and genuine, therefor we cannot match prices from private sellers, auction sites, or international businesses.
  • The product must be identical to ours in condition, model, colour, and size, and the competitor must have it in stock at the time of the Price Match.

  • The competitor’s price must include VAT and delivery charges, and be listed on their website. We cannot match prices combined with other offers, including vouchers, clearance, or discontinued items.

  • Price Match offers cannot be applied after the sale is complete.

  • We cannot offer Price Matches for orders using insurance vouchers or on products purchased through finance or cycle-to-work schemes; these items must be paid in full using our usual payment methods.

  • If your Price Match is accepted, we will provide a discount code or link to complete your order. Only one discount code can be used per order.

  • All Price Match requests are subject to Cykel House's discretion, and we reserve the right to decline, alter, or withdraw this offer at any time.

Please note, whilst we can Price Match the majority of products, sending this information does not guarantee a price match is viable.

Email us your enquiry to: Hello@cykelhouse.com or hit the live chat.

The wait is finally over. EXT is proud to unleash the Vaia, a dual-crown inverted DH fork, distinguished from all others in its class. This groundbreaking product breaks away from familiar suspension design and is packed with innovation and cutting-edge tech for the gravity focused MTB world. While the Vaia completes EXT’s DH lineup, it’s thoughtful design and adaptability simultaneously lends itself to aggressive enduro bike and e-bike applications as well. With travel options from 170mm to 200mm, and the ability to change between 15mm and 20mm axles, the Vaia is both a powerful and versatile contender in the MTB market

Technology and Features

While the Vaia completes EXT’s DH lineup, it’s thoughtful design and adaptability simultaneously lends itself to aggressive enduro bike and e-bike applications as well. With travel options from 170mm to 200mm, and the ability to change between 15mm and 20mm axles, the Vaia is both a powerful and versatile contender in the MTB market.

 

Thanks to a proprietary cam stem design, developed with Mojo Rising, the Vaia offers two offset options (44 and 48 mm) with only one stem and crown, allowing for personal adjustment of steering geometry. The fully machined double crown is made from 7075 aluminum.

Floating Bushing

We have implemented technology derived from our motorsports heritage to provide optimal bushing performance, via floating bushings.

 

The new DU bushings in the Vaia fork are manufactured to precise tolerances for each assembly and works seamlessly with our specially formulated EXT oil. This combination ensures zero stiction and exceptionally low friction, even under high side loads.

 

Like in MX, our unique DU guiding system, featuring a specially designed long bushing overlap, provides maximum guidance and optimal torsional rigidity for the stanchions. We’ve named it the CGB (Continuously Guided Bushing) system, which also boosts dynamic stiffness. Optimized inner volume design ensures maximum lubrication for floating bushing systems.

 

This technology inherently allows for optimal bushing overlap that increases throughout fork travel but also has the advantage of incorporating a radial float capacity, that constantly adapts to any forces exerted onto the fork tubes by the wheel. As such this small degree of float may be percetible while unweighting the system from a static state, such as lifting the front of the bike in the parking lot. However, in actual use this is not detectable by the user.

 

Wheel Axle

Twin hexagonal Grade 5 Titanium (Ti Gr 5) floating wheel axle guarantees perfect wheel alignment and excellent torsional stiffness. Available in 15mm diameter version for enduro wheels and 20mm for DH, with no need to replace any major components of the fork; just add an adapter forthe 15mm axle!

 

Bolts, nuts, washers, and other hardware components made of Grade 5 Titanium DIN 912 spec, used in aerospace and industrial applications for its high mechanical strength, light weight, and corrosion resistance characteristics. We know that even the small things matter, so all details were considered.

 

Double Drop Crowns

 

  • 10 mm drop for headtube from 107mm to 136mm
  • 30 mm drop for headtube from 127mm to 156mm.

 

Air Spring

Vaia features the EXT HS3 technology, a unique hybrid air spring system with two separate positive air chambers that work in tandem with a large-volume, self-equalizing negative air chamber. HS3 is designed to provide excellent mid-stroke support around the dynamic sag position, while also delivering outstanding sensitivity and bottom-out protection.

 

All passages and ports are designed to minimize air pressure drop during long stroke high-speed movement, minimizing hysteresis.
The special design improves heat dissipation and better isothermic conditions, balancing pressure variations and ensuring consistent performance even on long descents.

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