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The Bombtrack Hook EXT gravel touring cyclocross bike comes with free shipping and no sales taxes.

So what does the EXT stand for?  The truth is, we can't even remember anymore, extreme, extended, extraordinary, take your pick.  

'The important thing is what the Hook EXT is built on:  Built on a 27.5" rim and using a wider tire produces a wheel with the same outer diameter as a typical 700x28c.  This means it's possible to run bigger knobby mountain bike tires, with all the grip they offer, yet retain the geometry of a CX/gravel bicycle, something gravel races have long dreamed of.  This is made possible due to a specially designed frame that utilizes a wider bottom bracket and yoke to maintain a wide yet short rear end.

The Columbus Cromor double-butted tubing has the ideal blend of being lightweight yet durable, perfect for gravel riding.  The fork was then developed specifically for this bike, with a super wide crown offering massive tire clearance and a stiffer tapered steerer tube for more accurate handling.

The SRAM Rival 1 is ideally suited to the Hook EXT, thanks to its simplified 1x design with clutch derailleur, wide range cassette and X-Sync chainring providing smooth shifting under any conditions.  The hydraulic brakes bring superior stopping power to the EXT, which is reassuring on steeper technical descents.  The versatile build is designed to offer as much all-around use as possible, so if your journey is mainly on-road, swap out the wheels for a set of 700c's, accommodating anything up to a 45c tire.

Why BUY This Bike:

  • Worried about shipping costs for this heavy duty item?  We ship for free!
  • Worried about quality?  This is German manufacturing at its finest.

 Product Specifications:

  • Frame/Fork:  COLUMBUS "Cromor" double butted tubing frame in 51/54/57/60 cm with TA dropout; BT BIKES "CX-52" carbon/alloy fork, 1 1/8"-1 1/2" tapered with TA dropout; FSA "Orbit ITA" sealed a-headset, 1 1/8"-1 1/2" tapered
  • Wheels/Tires:  WTB "STS" double wall sleeved, tubeless compatible 32h front rim with BT BIKES "Origin" sealed CL front disc hub, 15x100mm thru axle; WTB "STS" double wall, sleeved, tubeless compatible 32h rear rim with BT BIKES "Origin" sealed cassette rear hub, 12x142mm thru axle; WTB "Nano" 27.5x2.1" tires
  • Drivetrain:  SRAM "Rival 1" cranks with SRAM "X-sync" alloy 44t chainring; KMC "X11-1" chain; FSA "386EVO" bottom bracket; SRAM 11-speed cassette with 11-36t; SRAM "Rival 1" derailleur
  • Brakes/Cockpit:  SRAM "Rival 1" hydraulic brake levers; SRAM flat mount hydraulic disc brakes, 160mm front/140mm rear; BT BIKES "Origin" forged alloy -7 degree stem; BT BIKES "CR-10" 6061-T6 butted alloy, 10 degree flared drop bar; SELLE SAN MARCO "Squadra-Startup" saddle; BT BIKES "620" alloy seatpost
  • Extras:  Metallic grey; 11.1 kg (24.5 lbs) in Medium


FREE SHIPPING and NO SALES TAXES on ALL orders (in the lower 48 states)!*



As soon as you place your order you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order we automatically reach out to our suppliers for shipment. 

If your order is in stock and we process the charges to your credit card it will ship and ARRIVE within 5-7 business days from the date of shipment to your address, unless otherwise stated for specific products.  Some larger products (ATVs, go karts etc) will take longer than 5-7 business days as they require time to inspect and ship by special freight carrier.

We will send you tracking information to the e-mail address you provide when checking out.  If you do not receive tracking information from us within 5 business days of your order feel free to follow up with us at

Please note we do not ship to PO Boxes. 

Please note we do not do overnight or expedited shipping, unless otherwise stated on specific products.


Please inspect the packaging of your item(s) when they arrive.  If the packaging appears heavily damaged on the outside, you have the opportunity to reject the shipment.  Once you sign and accept the shipment, we no longer have the authority to file a claim with the shipping carrier.  In the rare instance the item inside is damaged, kindly do not worry as we will work with you to resolve the situation.  You can send any photo evidence to

Please note we pack all our products as best as possible.  Sometimes the packaging may get dented in shipping, but do not be concerned as the inside contents are usually still intact.

Upzy does not pay or reimburse any labor costs undertaken by the customer on his/her own accord.



If you are not completely satisfied with your purchase, please email us at  We can arrange a return authorization within 15 days of the receipt of your product.  The product must be returned in the resale-able condition it arrived in, with its original boxes, for a refund or exchange (no damaged items).  Return tracking number must be provided.  

Buyer is responsible for all return shipping costs.  There is a 15% restocking fee for all returned items.

*Please note that each manufacturer's return policies may vary and we ultimately adhere to each manufacturer's return policy (they override ours).  It is important to contact us for further clarification first.



Order Has Not Shipped:  $25 administration fee when canceled.  This is to account for the manpower hours used to prepare your product, which tend to be large in size.  If product is not in stock, you will not be charged this fee.

Order Has Shipped:  Buyer is responsible for return shipping charges and a 15% restocking fee unless otherwise stated.  

Buyer's Remorse Return or Refusing A Shipment When It Arrives:  Buyer is responsible for delivery (outbound) and return shipping charges and 15% restocking fee, unless the shipment comes visibly damaged and defective.

*Please note that each manufacturer's return policies may vary and we ultimately adhere to each manufacturer's return policy (they override ours).  It is important to contact us for further clarification first.

Refunds will be issued to the original credit card or Paypal account that you used when placing your order.  



We work very hard to ensure that we offer the absolute lowest prices online.  We want you to feel confident that you are getting the lowest price for your product compared to any other online store, and we will match their lowest price accordingly.


Our 100% Price Guarantee has some limitations:

  • It does not apply to prices for our own store bought at different dates.  We reserve the right to change prices due to fluctuating sale prices from our manufacturers 
  • Promotions such as rebates and buy one, get one free offers are not eligible
  • The item must be in stock on the competitor website
  • The competitor must be an online store, they must not have a retail location
  • The website cannot be a discounter or auction website (eg eBay, Overstock, etc)
  • The competitor must be an Authorized Dealer for the product in question
  • The Price Match Guarantee is for the final price after shipping and sales taxes.  A lot of online stores advertise a lower price but tack on shipping charges and sales taxes in the checkout process, ultimately making their price higher than ours.  We never have hidden fees. 

Feel safe knowing that you are purchasing the best possible price online from Upzy (formerly known as Super Scooter Store) - Buy from us today!



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