1991 GT Quatrefoil
The Quatrefoil incorporates ovalised top tube and lateral tubes into the GT triple triangle design. Unlike other tandem frames that whip and twist, the Quatrefoil with its direct lateral design, will instil confidence in your Stoker (rear rider).
Description
Specifications for the GT Quatrefoil read like a tandem lovers wish list: our U.S. made fillet braized chromoly frame set with superior torsional stiffness 1-1/8 inch oversize headset to take a double weight beating, top-of-the-line Shimano Deore XT components with 21 speed HyperGlide, unmatched breaking power from a single rear brake, and wheels with ATB strength and road bike efficiency.
The Quatrefoil LE has it all. The frame is meticulously handcrafted from selected chromoly tubing that incorporates ovalised top tube and lateral tubes into the GT Triple Triangle design. Unlike other tandem frames that whip and twist, the Quatrefoil LE with its direct lateral design, will instil confidence in your Stoker (rear rider).
GEOMETRY
Head tube angle: 70°
Seat tube angle: 73°
USEFUL INFORMATION
Seat Post internal diameter: TBC
Front Mech Band Diameter: TBC
Technical specification
Geometry
- Sizes
- 20"x18", 19"x17"
Frame & Fork
- Frame material
- Chromoly
- Frame
- GT Triple Triangle design; Tange MTB double butted chromoly; f"Direct Lateral Design"; four sets of water bottle bosses; full rack braze-ons
- Fork
- GT exclusive design Unicrown with 1-1/8" oversize butted chromoly steer tube; 1-1/8 butted chromoly blades, cold forged dropouts with adjustable offset
Drivetrain
- Crankset
- Shimano Deore XT STI SuperGlide round chainrings 48/38/28T silver; crank arms anatomically sized
- Bottom bracket
- Shimano Deore DX sealed
- Chain
- Shimano Deore DX
- Freewheel
- Shimano Deore DX HyperGlide Cassette, 12-28T 7-speed
- Shifters
- Shimano ST-M092 Deore DX STI Rapid-Fire 7 speed
- Pedals
- Surefoot style with alloy body and chromoly axles
- Derailleurs
- Shimano Deore XT STI
Wheels
- Rims
- GT/Araya RM-20 700D, grey anodised, 36H
- Tires
- GT/IRC 700Dx1.4 dual purpose skinwall
- Spokes
- 14G stainless steel
- Hubs
- Shimano Deore DX QR with rear cassette, 36H
Cockpit & contact
- Handlebar
- Front: GT chromoly flat tapered, black. Rear: U shaped black alloy
- Stem
- Front: GT chromoly with internal cable routing. Rear: GT chromoly stoker
- Grips
- Front: GT/AME anatomical. Rear: foam ATB with end caps
- Headset
- Tioga 1-1/8" oversize sealed, black
- Saddle
- Front: GT GelCel racing mens Rear: Ladies
- Seat post
- GT True Temper chromoly black, 300mm
- Seatpost clamp
- GT All-Terra heat treated alloy, black anodised with GT chromoly skewer with rubber cover
- Colour
- Daktari White, Deep Purple, Midnight Aurora
Brakes
- Brakes
- Shimano Deore DX SLR new low profile BR-M650 front cantilever and rear U-brake with Flex Guard GT cable crosser.
- Brake levers
- Shimano Deore DX SLR 4 finger, black
Extras
GT InstaFlate C02 pump (USA only); Chain stay protector
