
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 | 4130 chromoly, unicrown crown |
| Crankset | 1-piece chromoly 7", 44 teeth |
|---|---|
| Bottom Bracket | Tien Hsin TH-508 |
| BB Shell Width | 68mm Threadless |
| Rear Cogs | 1-speed, 16 teeth |
| Chain | Taya 410, 1/2 x 1/8" |
| Pedals | Redline platform |
| Brakes | front/alloy cantilever rear brakes, alloy levers |
|---|
| Headset | 1" threadless Dia-Compe Aheadset |
|---|---|
| Handlebar | Redline |
| Stem | Redline Stealth |
| Saddle | Redline Snakeskin |
| Seatpost | Steel, 25.4 mm diameter |
| Rims | Alex VP-20, 36-hole |
|---|---|
| Spokes | Steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Front: 20 x 2.10" Redline, Rear: 20 x 1.95" Redline |
| 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 Use these as a historical reference, not for size-specific fit.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 | 493 mm |
| Head-tube angle | 73° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 380 mm |
| Wheelbase | 915 mm |
| Fork offset / rake | 28 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: 1996 Redline RL 440 · BMX · Published sizes: Boys 12"
Archived: Frame: Pulse welded · Fork: Redline · 4130 chromoly, unicrown crown
Archived: Crankset: 1-piece chromoly 7", 44 teeth · Bottom bracket: Tien Hsin TH-508 · Rear cogs: 1-speed, 16 teeth · Chain: Taya 410, 1/2 x 1/8"
Archived: Brakes: front/alloy cantilever rear brakes, alloy levers
Archived: Wheel size: 20" wheels · Rims: Alex VP-20, 36-hole · Front tire: Front: 20 x 2.10" Redline, Rear: 20 x 1.95" Redline
Archived: Headset: 1" threadless Dia-Compe Aheadset · Handlebar: Redline · Stem: Redline Stealth · Seatpost: Steel, 25.4 mm diameter · Saddle: Redline Snakeskin · Pedals: Redline platform
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.