
ENVE Twin Bolt Seatpost - 25mm Offset UD Carbon, 25.4mm
25.4mm
Replacement option · verify fit
Velopedia Bicycle Archive
Original specifications: BMX Mix drivetrain · 20" wheels · 27.5 lb published weight.
Selling this bike? Create a shareable bike record
At a glance
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Hi-tensile |
| Fork | Redline Monster |
| Fork Material | Hi-Ten, unicrown crown |
| Component Group | BMX Mix |
|---|---|
| Crankset | Redline Tubular Chromo, 36 teeth |
| Bottom Bracket | Loose ball mid |
| Cassette | Odyssey freewheel |
| Rear Cogs | 1-speed, 13 teeth |
| Chain | KMC Z410, 1/2 x 1/8" |
| Pedals | Redline PC Platform |
| Brakes | Tektro FX340 U-Brake rear brakes, Tektro 289A rear levers |
|---|
| Headset | 1 1/8" threadless VP threadless |
|---|---|
| Handlebar | Redline 7.25" Hi-Ten |
| Handlebar Extensions | Not included |
| Stem | Redline Hollowpoint Aluminum |
| Saddle | Redline Trail |
| Seatpost | Redline Steel, 25.4mm diameter |
| Hubs | Front: Redline 3/8 Axle, Rear: Redline Flip-Flop 14mm |
|---|---|
| Rims | Alex Y-303, 36-hole |
| Front Tire | Front: 20 x 2.20" Odyssey Dirtpath, Rear: 20 x 1.85" Odyssey Dirtpath |
| Wheel Size | 20" wheels |
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: 2010 Redline Romp III · BMX · Published sizes: One size fits all
Archived: Frame: TIG-welded · Fork: Redline Monster · Hi-Ten, unicrown crown
Archived: Group: BMX Mix · Crankset: Redline Tubular Chromo, 36 teeth · Bottom bracket: Loose ball mid · Cassette: Odyssey freewheel · Rear cogs: 1-speed, 13 teeth · Chain: KMC Z410, 1/2 x 1/8"
Archived: Brakes: Tektro FX340 U-Brake rear brakes, Tektro 289A rear levers
Archived: Wheel size: 20" wheels · Rims: Alex Y-303, 36-hole · Hubs: Front: Redline 3/8 Axle, Rear: Redline Flip-Flop 14mm · Front tire: Front: 20 x 2.20" Odyssey Dirtpath, Rear: 20 x 1.85" Odyssey Dirtpath
Archived: Headset: 1 1/8" threadless VP threadless · Handlebar: Redline 7.25" Hi-Ten · Stem: Redline Hollowpoint Aluminum · Seatpost: Redline Steel, 25.4mm diameter · Saddle: Redline Trail · Pedals: Redline PC Platform
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held 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.