- Frame
- 7005 aluminum
- Brakes
- Dia-Compe VC-1 brakes, Diamondback alloy BMX levers
Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
No key difference could be established from the available data. Check the full table for the details.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.69:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
1996 Diamondback Reactor Pro
1997 Diamondback Reactor Pro
Overview
Model Year
1996
1997
Brand
Diamondback
Diamondback
Model
Reactor Pro
Reactor Pro
Bicycle Type
BMX
BMX
Original MSRP
$490.00
$550.00
Colors
—
Brushed
Sizes
Boys 12"
Boys 9.5"
Weight
23.4 lb
23.6 lb
Frameset
Frame Construction
Welded aluminum
TIG-welded
Frame Material
7005 aluminum
7005 aluminum
Fork
Diamondback aero BMX
Akisu
Fork Material
4130 chromoly, unicrown crown
Chromoly, unicrown crown
Drivetrain
Crankset
1-piece chromoly 7", 43 teeth
Vigorousport VCR-01FS, 44 teeth
Bottom Bracket
Victor VPB-35
Vigorousport
BB Shell Width
68mm Threadless
68mm Threadless
Rear Cogs
1-speed, 16 teeth
1-speed, 16 teeth
Chain
KMC HP-70, 1/2 x 3/32"
KMC HP-20, 1/2 x 3/32"
Pedals
Victor VP-457
Wellgo LU-953
Brakes
Brakes
Dia-Compe VC-1 brakes, Diamondback alloy BMX levers
Tektro 867A brakes, Dia-Compe MX-101 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Dia-Compe Kontak Aheadset ST-2
1 1/8" threadless Dia-Compe Kontak Aheadset ST-2
Handlebar
Diamondback BMX chromoly
Hsin Lung
Stem
Diamondback BMX alloy
Lee Chi
Saddle
Diamondback BMX, chromoly rails
Velo VL-269
Seatpost
Kalloy SP-257, 27.0 mm diameter
Kalloy SP-257, 27.0 mm diameter
Wheels & Tires
Hubs
—
King Kong aluminum, nutted
Rims
Weinmann 4019, 32-hole
Weinmann 4019, 36-hole
Spokes
Stainless steel, 2.0mm straight gauge
Chung Nan stainless steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
20 x 2.125" Tioga Comp III
20 x 2.125" Tioga Comp III
Rear Tire
20 x 1.75" Tioga Comp III
20 x 1.75" Tioga Comp III
Wheel Size
20" wheels
20" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
75°
75°
Seat-tube angle
71°
71°
Chainstay / rear center
395 mm
393.7 mm
Wheelbase
—
965.2 mm
Fork offset / rake
30 mm
30.5 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.