- Frame
- Hi-tensile steel
- Brakes
- Kung Ten coaster brake
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
Only 1997 Diamondback Mini Viper has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Ratio2.00:1
Estimated speed at 90 RPMGear
Uses front tire 16×1.75; rear size isn’t listed.
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
1998 Diamondback Mini Viper
1997 Diamondback Mini Viper
Overview
Model Year
1998
1997
Brand
Diamondback
Diamondback
Model
Mini Viper
Mini Viper
Bicycle Type
Juvenile
Juvenile
Original MSRP
$115.00
$115.00
Colors
Chrome-plated, Red
Chrome-plated, Red
Sizes
Boys
Boys 9"
Weight
—
24.5 lb
Frameset
Frame Construction
MIG-welded
MIG-welded
Frame Material
Hi-tensile steel
Hi-tensile steel
Fork
Diamondback
Diamondback
Fork Material
Hi-tensile steel, unicrown crown
Hi-tensile steel, unicrown crown
Drivetrain
Crankset
1-piece 4 1/2", 36 teeth
1-piece 4 1/2", 36 teeth
Bottom Bracket
YST BB 621
Victor VPB-36
BB Shell Width
—
68mm Threadless
Rear Cogs
1-speed
1-speed, 18 teeth
Chain
Taya 410, 1/2 x 1/8"
Taya 410, 1/2 x 1/8"
Pedals
Resin
Victor VP-209
Brakes
Brakes
Kung Ten coaster brake
KT coaster brake
Cockpit & Contact Points
Headset
1" YST steel
1" YST HP-663
Handlebar
Hi-tensile steel
Aluminum
Stem
Meng Jing MJ-MF310
Hsin Lung steel
Saddle
Diamondback padded
Diamondback padded
Seatpost
Pillar, steel, 22.2mm (7/8 inch) diameter
Steel pillar, 22.2 mm (7/8 inch) diameter
Wheels & Tires
Hubs
Front: Kung Ten steel, nutted, Rear: Kung Ten coaster
Front: Kung Ten K-104F, Rear: Kung Ten coaster brake
Rims
Steel, 28-hole
Steel, 28-hole
Spokes
Shuhn Lih steel, 2.0mm straight gauge
Shuhn Lih steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
16 x 1.75" Cheng Shin Comp III type
16 x 1.75" Comp III style
Wheel Size
16" wheels
16" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
75°
75°
Seat-tube angle
72°
72°
Chainstay / rear center
315 mm
311.1 mm
Wheelbase
751.8 mm
711.2 mm
Fork offset / rake
30.5 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.