
ENVE Twin Bolt Seatpost - 25mm Offset UD Carbon, 25.4mm
25.4mm
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: N/A drivetrain · 20" wheels · 25 lb published weight.
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At a glance
| Frame Construction | Pulse welded |
|---|---|
| Frame Material | 4130 chromoly |
| Fork | Redline |
| Fork Material | Chromoly, unicrown crown |
| Crankset | Redline 1-piece chromoly, 43 teeth |
|---|---|
| Rear Cogs | 1-speed, 18 teeth |
| Chain | Taya, 1/2 x 3/32" |
| Pedals | Redline Footjaw |
| Brakes | front/Chang Star 879AG cantilever rear brakes, Chang Star 257A levers |
|---|
| Headset | 1 1/8" Dia-Compe steel Aheadset |
|---|---|
| Handlebar | Redline Forklifter |
| Stem | Redline Stealth |
| Saddle | Redline Snakeskin |
| Seatpost | Redline chromoly, 25.4 mm diameter |
| Hubs | King Kong/oversized alloy |
|---|---|
| Rims | Araya 7X, 36-hole |
| Spokes | Steel, 2.0 mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Front: 20 x 2.10" Redline Flight, Rear: 20 x 1.80" Redline Flight |
| Wheel Size | 20" wheels |
Model-level measurements; the frame size was not recorded. Use these as a historical reference, not for size-specific fit.
Reference frame view
Select an available measurement to locate it on the frame.
| Measurement | Legacy reference |
|---|---|
| Top tube | 540 mm |
| Head-tube angle | 75.3° |
| Seat-tube angle | 70.3° |
| Chainstay / rear center | 390 mm |
| Wheelbase | 970 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Parts & serviceability

25.4mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Archived: 1995 Redline Proline · BMX · Published sizes: Boys 11"
Archived: Frame: Pulse welded · Fork: Redline · Chromoly, unicrown crown
Archived: Crankset: Redline 1-piece chromoly, 43 teeth · Rear cogs: 1-speed, 18 teeth · Chain: Taya, 1/2 x 3/32"
Archived: Brakes: front/Chang Star 879AG cantilever rear brakes, Chang Star 257A levers
Archived: Wheel size: 20" wheels · Rims: Araya 7X, 36-hole · Hubs: King Kong/oversized alloy · Front tire: Front: 20 x 2.10" Redline Flight, Rear: 20 x 1.80" Redline Flight
Archived: Headset: 1 1/8" Dia-Compe steel Aheadset · Handlebar: Redline Forklifter · Stem: Redline Stealth · Seatpost: Redline chromoly, 25.4 mm diameter · Saddle: Redline Snakeskin · Pedals: Redline Footjaw
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.