Updated  01/31/04

 

The RS24 Spitfire

Water bottles, Fenders, pedals, and mirror sold separately

 

 

Please Note

The Spitfire RS/ST24 and Spitfire ST20 are no longer in production

 

Introduction

The Spitfire is a culmination of ten years of trike design experience and four generations of innovative products.  Our design criteria is based on a few fundamentals; a stiff and light-weight frame, great ergonomics, and uncompromised aesthetics.  To complement our high-quality frame we integrate the finest component groups available.  In closing, we design trikes right. 

 

Product Features

Unleashed Performance

The Spitfire is an ultra-light and nimble trike offering exhilarating high speed handling and fast acceleration.  The direct linked steering knuckles provide optimum Ackerman compensation.  The steering is finely tuned to reduce brake steering allowing safe, high-speed braking.  The weight distribution is adjusted for optimum stability and handling.  The ultra light-weight frame allows faster acceleration and uphill climbing with no frame flexing.  For optimum performance, the Spitfire has no equal.  For more information on what makes the Spitfire the performance leader click here.

 

High Quality Components are Standard

We complement our high quality Spitfire frame with the finest components found on any recumbent trike.  Our basic ST is equipped with Shimano XT/Ultegra components.  For our high performance RS we equip it generously with the finest components available from Shimano.

 

TIG Welded, Reinforced 6061-T6 Aluminum Frame

Rickey Horwitz was one of the first trike manufacturers to market a welded aluminum frame back in 1994.  Aluminum with its excellent forming and workability was chosen as the primary material.  All critical points are reinforced with tube gussets.  The rear-end uses a fully triangulated stay design.  The lower seat is an integral part of the frame that reduces torsion and lateral flexing of the middle frame section.  The results is an ultra-lightweight trike that is incredibly stiff.  A stiff frame reduces pedal flexing that ultimately can cause high speed instability.

A bare RS-24 frame (8 lb, 8 oz) (click for larger size)

Note the generous use of oversized tube gussets

Each tube is thoroughly welded by a TIG process.  Unlike MIG, a TIG weld fully mixes the welded seams together guaranteeing a solid joint.  The TIG process is used by the finest bicycle frame manufactures in the world.  Therefore, we would not expect anything less for our quality product.  Upon this welding process the frames are fully stress relieved and heat treated for maximum strength and integrity.

Total Comfort

The Cordura/Lanoloc mesh combination seat sling is fully adjustable and provides padding to the neck and shoulders.  The base of the seat is concave giving it ample lateral support.  Unlike other sling seats, the rider sits IN the seat not ON top of the seat, allowing excellent lateral support.  The contour of the rear seat offers excellent lower lumbar support.  Last, the independent rear seat frame allows seat angle adjustment without changing the geometry of the base seat.  Unlike some trikes, our seat angle adjustment does not affect the frame geometry or require making chain length adjustments.

 

Dual Hydraulic Disc Brakes are Standard

The dual Hope Mini Disc brakes are nothing less than phenomenal and are standard equipment on every Spitfire.  On the above seat club tiller steering model, both left and right brakes are synchronized using a single handle.  For under seat U-bar steering one or two brake levers are used.   The placement and adjustment of hand controls on both configurations makes this machine easy and comfortable to control.

The picture above is a view of the disc brake system

 

Proudly Made In the USA

The Spitfire is designed and built with pride in USA.  At Hellbent Cycles we strongly believe that we Americans have the know-how and determination to build a world class product.

 

Aesthetic Beauty

The looks of this trike steals attention from any crowd.   The basic outline of the Spitfire is reminiscent of the award winning Zephyr released in 1994.  Careful attention to every detail is made to blend in styling and elegance without compromising  performance or comfort.  In short, this trike represents the pinnacle of practical performance and styling.

 

True Quality and Value

For the performance, features, and quality, we offer the best product for the money.  To top it off, we warranty our frames for 5 years. 

 

Other Features:

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Adjustable angle seat.  Does not require chain or frame adjustment.

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High performance 7075 Aluminum alloy Rod-End Bearings used throughout

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Optional segmented frame, easily disassembled for travel convenience or storage.

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Rear fittings allow the addition of a standard rack without using unique hardware.

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Adjustable Camber.

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Rear Stays with built-in provisions for disc brake

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Three water bottle mounts

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Low friction PTFE (Teflon) chain tubing

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Totally adjustable USS steering system with steering gain adjustment.

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Fully adjustable OSS steering system

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Metallic Powder Coat finish in either Red or Blue

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Provisions for optional front and rear fenders (mud guards)

Configurations Available

The original Spitfire specification generalized a no-compromised performance trike capable of competing with the fastest trikes every produced.  However, it became obvious that a multi-roll variant of the Spitfire platform was needed to satisfy those who may not be impressed by performance alone.  Therefore, the Spitfire will now be available in multiple configurations to suite the needs of many.

 

Spitfire RS24

The RS (Racing/Sport) represents our high performing Spitfire trike.  Unlike many other performance trikes, the RS24 doesn't rely on tiny 16" wheels to reduce weight.  The RS features 20" front and 24" rear wheels with a narrow wheel track width of 28.25", aggressively angled seat (as low as 34) and an OSS club tiller   The trike is outfitted with Shimano XTR/Dura Ace components and Hope hydraulic Disc brakes.  Using lightweight 7075 aluminum and titanium hardware, the Spitfire RS is one of the lightest and fastest trikes ever built.  The drive-train offers a standard gear range of 22 through 116 gear inches (31-126 with the Extreme Option), making it an unchallenged force to be reckoned with.

Base Price: $4,150 

 

Spitfire ST20 and ST24

The ST (Sport/Touring) is geared as a high performance touring/commuting trike.  With a standard wheel track of 31.5", the ST has a sharper turning radius than the RS and comes standard with an adjustable USS, thus offering a tamer ride and slightly more roomier feel than the RS.  However, don't assume these differences come at a steep compromise.  At less than 31 lbs, this trike can easily keep up with the highest performing trikes on the market today.

 

The designations 20 and 24 represent the rear wheel size.  In the last few years the recumbent enthusiast have migrated towards an all-20 inch wheel trike configuration.

Base Price: $3,495 (for both ST20 and ST24)

 

Trike Specifications

 

 

Trike Dimensions

Specification

RS24

ST24

ST20

Total Length

~80

~80

~77

Total Width

32

35.5

35.5

Wheelbase

42

40

38

Wheel Track

28.25

31.5

31.5

Ground Clearance

3.5

3.2 for USS /4.5 for OSS

3.2 for USS /4.5 for OSS

Turning Circle (measured on the outside wheel)

 

19 ft.

 

17.0 ft

 

17.0 ft

Weight*

27.6 - 28.5 lbs.

30.7 lbs

30.9 lbs.**

 

 

Rider Dimensions

Bottom Bracket Height

~18, increases .44 for every inch extended

~18, increases .44 for every inch extended

~18, increases .44 for every inch extended

Seat Bottom Height

7

7.7

7.7

Seat Width

18.8

18.8

18.8

Seat Angle

34 to 42

40 to 48

35 to 45

Max Weight Capacity

250 lbs

275 lbs

275 lbs

Min X-Seam

 37"

 37"

 37"

Max X Seam

 47"

 47"

 47"

Steering Configuration

OSS using a Club Tiller

USS using a U-bar or optional OSS Club Tiller

USS using a U-bar or optional OSS Club Tiller

Steering Geometry

Caster Angle

12

12

12

Camber Angle

+/-3

+/-3

+/-3

Center Point Angle

19

19

19

Scrub Radius ~-.27" (7 mm) ~-.27" (7 mm) ~-.27" (7 mm)

 

 

 

Components

Rear Derailleur

Shimano XTR -M960-SGS

Shimano XT RD-M570-

Shimano XT RD-M570

Front Derailleur

Shimano Ultegra

Shimano Ultegra

Shimano Ultegra

Shifters

Shimano DuraAce Bar-end shifters,

Shimano DuraAce Bar-end shifters

Shimano DuraAce Bar-end shifters

Crank Set

Shimano DuraAce    FC-7703, 53/40/30

Shimano Ultegra     FC-6503, 52/40/30

Shimano Ultegra FC6503, 52/40/30

Bottom Bracket

Shimano Ultegra BB6503

Shimano Ultegra BB6503

Shimano Ultegra BB6503

Cassette

XTR CS-M953, 9 speed, 11-32 range

XT CS-M750, 9 speed, 11-32 range

XT CS-M750, 9 speed, 11-32 range

Front Brakes

Hope Mini-Disc

Hope Mini Disc

Hope Mini-Disc

 

 

 

Wheel Components

Front Wheels

Velocity AeroHeat 36 Spoke, black w/machine side walls, ISO 406, 38mm wide Rims, 14 gauge black SS spokes, Velocity 20mm axle, Disc Brake hubs

Velocity AeroHeat 36 Spoke, black w/machine side walls, ISO 406, 38mm wide Rims, 14 gauge black SS spokes, Velocity 20mm axle, Disc Brake  hubs

Velocity AeroHeat 36 Spoke, black w/machine side walls, ISO 406, 38mm wide Rims, 14 gauge black SS spokes, velocity 20mm axle, Disc Brake hubs

Rear Wheel

Velocity AeroHeat 32 Spoke, ISO 518 Rims, 14 gauge. SS spokes, Velocity 9 spd cassette hub

Velocity AeroHeat 32 Spoke, ISO 518 Rims, 14 gauge. SS spokes, Velocity 9 spd cassette hub

Velocity AeroHeat 32 Spoke, ISO 406 Rims, 14 gauge. SS spokes, Velocity 9 spd cassette hub

Front Tires

Schwalbe Stelvio 20x1-1/8

Primo Comet 20x 1.35

Primo Comet 20x 1.5

Rear Tire

Panracer Technova II, 1-1/8

Panracer Technova II, 1-1/8

Primo Comet 20x 1.5"

 

Chain System

Chain

SRAM PC89R

Shimano CN-HG93 9-speed

Shimano CN-HG93 9-speed

Chain Management

Single chain roller on active side, Teflon tubing for passive side

Single chain roller on active side, Teflon tubing for passive side

Single chain roller on active side, Teflon tubing for passive side

Cost

Cost

$4,150

$3,495

$3,495

* Weight is measured in stock configuration without pedals, water bottles, cages or accessories. 

RS Extreme is a $345.00 option that reduces the overall weight to 27.6 lbs.

** The ST20 weighs less than 20.5 lbs. with the 1.35" wide tire selection.

 

Gear Inch Range

22.4 to 116 for RS

31.2 to 126 for RS with Extreme option

22.4 to 113 for ST24

16.4 to 153 for ST24 with optional Sachs 3x9

18.8 to   94 for ST20

13.8 to 127.8 for ST20 with optional Sachs 3x9

Options

Extreme Upgrade (RS only)
The extreme upgrade includes key components that reduce the weight of the RS to a svelte 27.6 Lbs, making it the lightest and fastest trike in it's class.  The upgrade features Lightning Cycle Dynamic's new Carbon Composite crank-set, DuraAce 11-28 cassette, aluminum spoke nipples and nylon Neoprene handle grips.  The gear inch range is modified for 31-126 gear inches.  This upgrade is for the serious enthusiast only.  Call Hellbent for availability.
Cost: $395.00
 
Schwable Stelvio Upgrade x3 (ST20 only)
The Schwable Stelvio 1-1/8" wide tire provides the least amount of rolling resistance (120 PSI) and are extremely light weight.   Save a total of 7 oz. weight!
Cost $60.00 for upgrade
 
Primo Comet 1.35" Exchange (ST20 only)
The gum-wall Primo Comet 1.35" is slightly lighter and lower profile than the standard 1.5" comet.  Save a total of .4 lbs of weight for free! 
No-Charge!
 
Sachs 3x9
The Sachs 3x9 increases the gear-inch range from -27% to +36%.  Although this Gear Hub adds 1.3 lbs to the trike and does not provide a quick release axle, it does provide an ultimate range of gears.
Cost: TBD
 
Parking/Drag Brake
A rear Shimano Sora caliper brake is available with cable and thumb lever.  This option adds 8 oz to the overall weight of the trike.
Cost $40.00/kit.
 
Deluxe Rear Disc Brake
This option includes a disc brake rear hub/cassette, Deore Mechanical Brake, cable and handle. This may be overkill, but it looks so cool!!!
Cost $175.00
 
Deluxe Flag and Pole
Most safety flag poles are constructed from heavy solid epoxy fiberglass.  Our deluxe flag pole uses an ultra-light telescopic carbon fiber hollow core constructed pole that weighs only 2.3 oz.!  
Cost $28.00
 
 
 
Mirror/Accessory Mount
This option mounts in seconds using our expanding collet system.   The complete system weighs less than 90 grams. Provisions for a water bottle and cycle computer make this a desirable option.  A right-hand mount can be special ordered.
 
Fenders (Mud Guards) Front and Rear
Yes! The Spitfire was designed with Fenders in mind.  The front fenders can be installed/removed in a minute using our single screw system.  The Mk II fender mounts have provisions for adjustment for larger and smaller tires.
Cost $109.00 (full 3 piece set)
 
Rear View Mirror
This Cat's Eye Mirror is made for the Spitfire.
Cost $7.95 ea.

Ordering Information

Warranty

The Spitfire frame carries a warranty of five (5) years.  This warranty excludes bearings, bushings or rollers. 

 

Support

As with any recumbent tricycle,  the Spitfire utilizes unique parts.  Since support for parts in the future is always a concern, every in-house designed component is documented with a process and CAD drawing.  Therefore, parts and assemblies can always be fabricated regardless of our status.

 

Manufacturing Process

Everything on the Spitfire is totally documented.  All subassemblies including tubes are identified by part number and a CAD drawing.  The Manufacturing Process is also documented, as the manufacturing process and drawings are available for sale.

 

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