
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 · legacy reference geometry.
Selling this bike? Create a shareable bike record
At a glance
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Hi-tensile steel |
| Fork | Redline |
| Fork Material | Hi-tensile steel, oversize, unicrown crown |
| Crankset | Redline Hex, 44 teeth |
|---|---|
| Bottom Bracket | Redline loose ball |
| BB Shell Width | American |
| Rear Cogs | 1-speed, 16 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Redline aluminum platform |
| Brakes | Tektro 914A rear brakes, Tektro 317A rear levers |
|---|
| Headset | 1 1/8" threadless Tioga TG |
|---|---|
| Handlebar | Redline steel |
| Stem | Redline Flight Group |
| Saddle | Redline logo |
| Seatpost | Redline, 25.4mm diameter |
| Hubs | Aluminum, nutted |
|---|---|
| Rims | Redline Alloy, 36-hole |
| Spokes | Redline UCP, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | Front: 20 x 2.00" RL Logo, Rear: 20 x 1.75" RL Logo |
| 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 Use these as a historical reference, not for size-specific fit.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 | 490.2 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 68° |
| Chainstay / rear center | 381 mm |
| Wheelbase | 920.8 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: 1999 Redline RL 340 · BMX · Published sizes: Pro
Archived: Frame: TIG-welded · Fork: Redline · Hi-tensile steel, oversize, unicrown crown
Archived: Crankset: Redline Hex, 44 teeth · Bottom bracket: Redline loose ball · Rear cogs: 1-speed, 16 teeth · Chain: 1/2 x 3/32"
Archived: Brakes: Tektro 914A rear brakes, Tektro 317A rear levers
Archived: Wheel size: 20" wheels · Rims: Redline Alloy, 36-hole · Hubs: Aluminum, nutted · Front tire: Front: 20 x 2.00" RL Logo, Rear: 20 x 1.75" RL Logo
Archived: Headset: 1 1/8" threadless Tioga TG · Handlebar: Redline steel · Stem: Redline Flight Group · Seatpost: Redline, 25.4mm diameter · Saddle: Redline logo · Pedals: Redline aluminum platform
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.