Genuine SkyHawk Built-In Tank Alum. Frame.

Grubee Inc


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New SkyHawk GT2B built-in 3.5L big gas tank frames and gusset re-enforced pedestal mounts.   Guaranteed not to crack and break.   

Painted bright RED with flaming SkyHawk tank decals. 

We expect fresh frame stock to be delivered in about 2 mounts if everything goes well with the second production build. 

The delay in receiving frames this year was because of 28% leaking tanks due to poor welds.  The whole production run was rejected by our China GAS inspector.   

We DO NOT KNOW where these rejected frames ended up?  All we do know is the factory did not scrape them.   Watch out for special low prices and close outs with no guarantee.  They may or may not be painted and they may or may not all leak.   

We must 100% guarantee no tank leaks with our Gt2B frames.    Strangely; we've noticed that our Blue State competitors say nothing about guaranteeing their frames against any tank leaks so buyers beware!   

We can take volume export orders for frames shipped direct from the China Frame factory to qualifying distributors in USA, Europe, Australia, and South America and Canada.  MOQ is 200 frames.   We inspect what you expect. 

Please know that GruBee was the first to design and provide built in gas tank bicycle frames over 13 years ago.   Accept no substitute;   All others just copy.   Most copy frames have 2.4 to 2.7L capacity gas tanks but now larger tank frames are being advertised.  Remember, Paint will not permanently seal a tank leak for very long.    Tank leak testing must be done before painting.   
  •  4 frame models are available with pedestal mount.   

GT2A-150 & GT2A-135  Built in 3.5L tank,   Big bottom hole / V caliper & disc brake

GT2B-150  & GT2B-135 Built in 3.5L tank,  small bottom hole  / V caliper & disc brake.

Made of 6061-6T Aluminum  

This is our latest design frame with a bigger gas tank that holds approx. 3.5 to 3.7 Liters.    Seat and chain stays now are made of heavier ga. alum. than first design.   Gussets supported pedestal mount.   Disc brake caliper attach on left rear.   Can also use V caliper brakes if desired. 

  • 1-1/8" head set tube ID. 
  • Choice of 150mm and 135mm drop outs.  
  • Small bottom hole for 3 piece pedal crank.    
  • 2.5mm tube thickness.  
  • 32mm OD seat post   
  • 38mm OD down tube. 
  • Reinforced Pedestal with mounting plate to accommodate M8 studs.
  • Comes with black plastic tank fill cap and Rubber Isolation Block for 2 stroke. 

Our Frames now are made more heavy duty than early production;   Gusset reinforced pedestal mount.  No more broken or cracked pedestals front engine mounts.   

Thicker metal now in seat and chain stays. 

Bigger capacity gas tank.   100% Pressure tested for leaks.

Small bottom hole frame avoids the need for using a WP-CK big hole to small hole conversion kit to accommodate a 3 pcs pedal crank.  

Select PC paint colors or unpainted in raw aluminum finish. 

Packed in double cardboard boxes for secure shipping.  

Want More Details Go to  Clock Right side:   International INFO.