Ratio2.50:1
Estimated speed At 90 RPM
Gear
Rear tire: 20×1.75.
Velopedia Bicycle Archive
1997 SE Racing PK Ripper Killer XL (01)
Original specifications: 20" wheels · 22.5 lb published weight · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #69630- Model year
- 1997
- Category
- BMX
- Original MSRP
- $799.00
- Sizes
- Boys
- Colors
- Black, Dark Blue, Red
- Weight
- 22.5 lb
- Geometry
- Legacy reference
- In this record
- 23 specifications · original MSRP · geometry
Original build6061 T6 aluminum · 20" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 6061 T6 aluminum |
| Fork | SE Racing Landing Gear Max |
| Fork Material | 4130 chromoly, unicrown crown |
Drivetrain
| Crankset | Profile 3-piece, 40 teeth |
|---|---|
| Bottom Bracket | Profile sealed bearing |
| BB Shell Width | 68mm Threadless |
| Rear Cogs | 1-speed, 16 teeth |
| Chain | KMC SS-91S, 1/2 X 3/32" |
| Pedals | Club Roost 20 |
Brakes
| Brakes | Dia-Compe VC-747 brakes, Dia-Compe PC-7 EXA levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Dia-Compe Aheadset |
|---|---|
| Handlebar | SE Racing Powerwing |
| Stem | Profile XL |
| Saddle | Velo w/chromoly rails |
| Seatpost | Chromoly micro-adjust, 22.2 mm (7/8 inch) diameter |
Wheels & Tires
| Hubs | Formula OV 31 |
|---|---|
| Rims | Alex DM-24, 36-hole |
| Spokes | Stainless steel, 2.0mm double butted |
| Spoke Nipples | Brass nipples |
| Front Tire | 20 x 2.125" Tioga Comp III |
| Rear Tire | 20 x 1.75" Tioga Comp III |
| Wheel Size | 20" wheels |
No specifications match. Try a component name or clear your search.
Geometry
Historical measurements. Frame size unknown.
Reference drawing
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 5 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 528.3 mm |
| Head-tube angle | 74° |
| Seat-tube angle | 68° |
| Chainstay / rear center | 365.8 mm |
| Wheelbase | 939.8 mm |
Frame size not recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
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.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
Chromoly micro-adjust
22.2 mm (7/8 inch) diameter
Alex DM-24
36-hole
Formula OV 31
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Front: 20 x 2.125" Tioga Comp III, Rear: 20 x 1.75" Tioga Comp III
- Drivetrain
- 1-speed
- Seatpost diameter
- 22.2 mm
- Bottom bracket / shell
- Profile sealed bearing · 68mm Threadless
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: SE Racing Landing Gear Max · 4130 chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Crankset: Profile 3-piece, 40 teeth · Bottom bracket: Profile sealed bearing · Rear cogs: 1-speed, 16 teeth · Chain: KMC SS-91S, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Dia-Compe VC-747 brakes, Dia-Compe PC-7 EXA levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Alex DM-24, 36-hole · Hubs: Formula OV 31 · Front tire: Front: 20 x 2.125" Tioga Comp III, Rear: 20 x 1.75" Tioga Comp III
Controls and contact points
Archived: Headset: 1 1/8" threadless Dia-Compe Aheadset · Handlebar: SE Racing Powerwing · Stem: Profile XL · Seatpost: Chromoly micro-adjust, 22.2 mm (7/8 inch) diameter · Saddle: Velo w/chromoly rails · Pedals: Club Roost 20
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.