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Brief History of the Schwinn Hydramatic:
First Appearance of the Hydramatic in the Schwinn BMX catalog was in 1998:
Quick Guide to identifying Schwinn Hydramatics:
1998 Schwinn Hydramatic

Colors Available : Bright Yellow, Dirty Green Metallic
1998: Schwinn HydraMatic
Frame: New Schwinn Freestyle Design, TIG Welded 100% Cro-Moly w/2˛ Down Tube, 1 1/2˛ Taper/Ovalized Top Tube, 1/4˛ Dropouts w/Integrated Freewheel Guard, TIG Welded 990 Brake Mounts, 1 1/8˛ Oversized Head Tube, and Pierced Top Tube ,
Fork: Schwinn 100% 4130 Cro-Moly Threadless Freestyle, Over Sized 1 1/8˛, 1/4" Dropouts, 1/8˛ Wall Steerer, and Integrated Peg Bosses ,
Headset: Dia-Compe SB-1 A-Headset, Steel w/Alloy Cap and Alloy Spacers ,
Crankset: XS Cro-Moly Two-Piece, 180mm w/XS 44T Alloy Sprocket ,
Pedalss: XS Comp Alloy Platform, Cro-Moly Axles, Replaceable Pins ,
Brakes - Levers: Dia-Compe 990 brakes, Dia-Compe Tech 77 levers ,
Handlebar: Schwinn Oversized/Tapered Cro-Moly, 4 Piece Type w/Knurled Cross Bar ,
Stem: XS CNC Alloy A-Head Clamp-On ,
Hubs: XS Alloy Sealed Bearing, Cro-Moly Axles, 14mm Rear Axle w/Oversized Nut ,
Rims: Alex AL-FTS-25 Triple Wall Welded Alloy,CNC sidewall, 48H ,
Tires: XS Hucker Freestyle, F and R 20 x 1.95˛ ,
Saddle: Schwinn Two-Piece w/Embossed Rally Stripe cover, 8mm Rails ,
Seatpost : Oversized 4130 Cro-Moly Micro-Adjust 26.6mm x 400mm ,
Extras: SST Rotor, XS Chain Grips, Oversized Pegs, Alloy XS Six Shooter Seat Clamp .
Suggested Retail Price 499.95
1998 Schwinn Hydramatic Comp:

Colors Available: Pearl White Metallic only
1998: Schwinn HydraMatic Comp (Jay Miron Signature Model)
Frame: TIG-welded chromoly
Fork: chromoly, unicrown crown
Headset: 1 1/8" threadless aluminum w/SST Oryg detangler
Crankset: Schwinn XS 3-piece, w/ 44 tooth chainwheel
Pedals: Schwinn XS aluminum
Brakes/Levers: Dia-Compe 990 brakes, w/ Dia-Compe Tech 77 levers
Handlebars: Schwinn XS Pro 4-piece chromoly
Stem: Schwinn XS invert
Hubs: Schwinn XS 4 X 4 48 spoke
Rims: Araya Super 7X
Tires: 20 x 1.95" Schwinn XS Hucker
Saddle: Schwinn Rally Stripe
Seatpost: Schwinn XS layback micro-adjust chromoly
Extras:
Suggested Retail Price 699.95
1999 Schwinn Hydramatic

Colors Available: Army Green
1999: Schwinn HydraMatic (Jay Miron Signature Model)
Frame: Schwinn Freestyle Design, TIG Welded 100% Cro-Moly w/2˛ Down Tube, 1 1/2˛ Taper/Ovalized
----Top Tube, 1/4˛ Dropouts w/Integrated Freewheel Guard, TIG Welded 990 Brake Mounts, 1 1/8˛
----Oversized Head Tube, and Pierced Top Tube
Fork: Schwinn 100% 4130 Cro-Moly Threadless Freestyle, Over Sized 1 1/8˛, 1/4" Dropouts, 1/8˛ Wall
----Steerer, and Integrated Peg Bosses
Headset:1 1/8" threadless Aheadset SB-1 w/SST Oryg detangler
Crankset: Schwinn XS 2-piece w/44 tooth XS Chainwheel
Pedals: Schwinn XS aluminum
Brakes/Levers: Tektro 909A brakes, with Tektro levers
Handlebars: Schwinn XS Pro 4-piece chromoly
Stem: Schwinn XS
Hubs: 48 hole Schwinn XS alloy Alex FTS-25
Rims: 48 spoke Alex FTS-25
Tires: Schwinn XS Hucker 20 x 1.95"
Saddle :Schwinn Rally Stripe
Seatpost: Schwinn XS layback micro-adjust chromoly, 26.6mm diameter
Extras:
Suggested Retail Price 549.95
1999 Schwinn Hydramatic Comp:

Colors Available: Fire Engine Red
1999: Schwinn HydraMatic Comp (Jay Miron Signature Model)
Frame: New Schwinn Freestyle Design, TIG Welded Cro-Moly w/ 2˛ Down Tube, 1 1/2˛ Taper/Ovalized Top
----Tube, 1/4˛ Dropouts w/ Integrated Freewheel Guard, TIG Welded 990 Brake Mounts, 1 1/8˛ Oversized
----Head Tube, and Pierced Top Tube.
Fork: Schwinn 100% 4130 Cro-Moly Threadless Freestyle, Over Sized 1 1/4˛ Legs, 1/4˛
----Dropouts, 1/8˛ Wall Steerer, and Integrated Peg Bosses.
Headset: Dia-Compe SB-1-F Aheadset, Steel w/Alloy Cap and Alloy Spacers.
Crankset: XS Drive Shaft 3 Tubular Cro-Moly Three-Piece 175mm w/XS 44T x 6.3mm CNC Alloy Sprocket.
Pedals: XS Comp Alloy Platform, Cro-Moly Axles, Replaceable Pins.
Brakes/Levers: Dia Compe 990 U-BrakesFront/Rear, Dia Compe/ Tech 77 Alloy Levers.
Handlebar: Schwinn Oversized/Tapered Cro-Moly, 4 Piece Type w/Knurled Cross Bar.
Stem: XS CNC Alloy A-Head Clamp-On.
Hubs: XS 4x4 Alloy Sealed Bearing, Cro-Moly Axles, 14mm Rear Axle w/Oversized Nuts.
Rims: Alex AL-FTS-25 Triple Wall Welded Alloy,CNC sidewall, 48H.
Tires: XS Hucker Freestyle, F and R 20 x 1.95˛x 60 TPI Kevlar reinforced sidewall.
Saddle: Schwinn Two-Piece w/Embossed Rally Stripe Cover, 8mm Cro-Moly Rails.
Seatpost: Oversized 4130 Cro-Moly Micro-Adjust 26.6mm x 400mm.
Extras: SST Rotor, XS Chain Grips, Oversized Pegs, Alloy Seat Clamp .
Suggested Retail Price 759.95
2000 Schwinn Hydramatic

Colors Available: :Creamed Coffe
2000 HydraMatic (Jay Miron Signature)
Frame: 100% 4130 TIG-welded Cro-Moly, oversized head tube with 14mm slots U-Brake posts, mounted top
----of chainstay, 1 "straw" on downtube, through seat tube, w/integrated rotor tabs.
Forks: chromoly
Headset: 1 1/8" threadless Aheadset
Crankset: Schwinn XS Drive Shaft, 44 teeth
Pedals: Schwinn XS alloy
Brakes/Levers: F & R Tektro U-brake brakes w/ alloy levers
Handlebars: Schwinn XS Alloy
Stem: Schwinn XS alloy
Hubs: Schwinn XS alloy 48 hole
Rims: 48 hole double wall
Tires: 20 x 1.95" Schwinn XS Hucker Type Freestyle/Jumping
Saddle: Schwinn XS plastic
Seatpost: steel micro-adjust, 26.6mm diameter
Extras: Chain Size 1/2 x 1/8"
Suggested Retail Price 499.99
2000 Schwinn Hydramatic Team

Colors Availabe: : Red
2000 Schwinn Hydramatic Team (Jay Miron Signature)
Frame: 100% 4130 Cro-Moly TIG-welded oversized head tube Porterhouse, Freewheel saver,14mm slots U-Brake posts, mounted top of chainstay 1 "straw" on downtube, through seat tube, w/integrated rotor tabs
Forks: chromoly, unicrown crown
Headset: 1 1/8" threadless Aheadset
Crankset: XS Drive Shaft, with 44 tooth
Pedals: Schwinn XS alloy
Brakes/Levers: Dia-Compe 990 brakes, Dia-Compe Tech 77 levers
Handlebars:
Stem: XS CNC alloy
Hubs: Schwinn XS 4x4 48 hole
Rims: 48 hole triple wall chromed aluminium Araya RB-J1
Tires: 20 x 1.95" Schwinn XS Hucker
Saddle: Schwinn XS plastic
Seatpost: chromoly micro-adjust, 26.6mm diameterr
Extras: Chain Size 1/2 x 1/8"
Suggested Retail Price 799.99
2000 Canadian Beast Frame

Color Available: Beast Red Powder Coat
2000 Canadian Beast Frame (Jay Miron Signature)
USA Made 4130 Cro-Moly oversized head tube Precision cut .25" thick, 14mm slots U-Brake posts, mounted under seatstay 1 "straw" leads to "tab" both on top tube, splits around seat tube, w/integrated rotor tabs Beast Red Powder Coat
A Quick Guide to identifying Schwinn Hydramatics:
The easiest way to begin identifying the Hydramatics is with the curved downtube,
there were other Schwinn BMX bikes made with this curved downtube including
the Powermatics, Supermatics Hydraglides and Powerglides, so this characteristic
is not specific to the Hydramatics. If the bike or frame has a set of
Hydramatic Decals the one way to get close on the year is the color of the frame,
althought that too can be somewhat confusing:
By Frame Color:
Yellow Frames and Green Frames:
1998 Hydramatics were both "Yellow and Dirty Metalic Green" the only year they made the Yellow
but in 1999 the Hydramatic was available in "Army Green" At this point in time I can not determine
the difference between the two greens, nor is there any individual decal characteristic that leads me
to tell the two apart, you have to look closer. To tell the 1998 and 1999 Model apart the first thing to
look for is the Jay Miron Signature decal, if it has one, it should be a 1999 model, failing that, look
at the brake levers, the 1998 Model should have Dia-Compe 990 brakes with Dia-Compe Tech 77
levers while the 1999 model should have come stock with Tetro brakes and levers.
White Frames:
White frames: the Hydramatics were offered in "Pearl White Metallic" as the 1998 Hydramatic Comp and also in a
"Creamed Coffe" as the 2000 signature frame. If the decals are there it will be easy to note the Comp labels
also the seat tube decal edges run horizontal to the tube in 1998 and vertical in 2000.
If the decasl are gone double check the rear flat spot of the top tube behind the seat for the small
"Canadian Beast" sticker, if however the decals are again missing entirely from the frame
the three piece crank arms might tell the difference, in 1998 they are chrome and solid
while in 1999 they are hollow tubular and typically black.
Red Frames:
Red framed Hydramatics present the biggest identifying issue
If the bike or frame is red, is it a 1999 Hydramatic Comp or a
or a 2000 Hydramatic Team or a Canadian Beast.
If the decals are still there it should be a simple thing to tell, if
they are not still there and the frame/bike is still red, and if it has been
unaltered from it's original equipment then the 1999 should have
the older 44 tooth chainwheel and the 2000 chainwheel should be
solid, also the 99 should be equiped with Alec AL-FTS-25 triple wall rims
where as the 2000 model came with the Araya RB-J1 triple wall rims,
but since those pieces might be missing it
may be even more difficult to determine.