
Campagnolo Chorus 12 UT Carbon Crankset Carbon, 170mm, 36/52t
170mm, 36/52t
Velopedia Bicycle Archive
Original specifications: Campagnolo Chorus drivetrain · 700c wheels · 20.5 lb published weight.
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At a glance
| Frame Construction | Lugged |
|---|---|
| Frame Material | Columbus Metax |
| Fork | Bilenky |
| Fork Material | Columbus Metax, semi-sloping crown |
| Component Group | Campagnolo Chorus |
|---|---|
| Shifters | Campagnolo Chorus Ergo |
| Front Derailleur | Campagnolo Chorus, bottom-pull/clamp-on 28.6 mm |
| Rear Derailleur | Campagnolo Chorus |
| Crankset | Campagnolo Chorus |
| Bottom Bracket | Campagnolo Chorus, 111 mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 8-speed, Buyer's choice of gearing |
| Chain | 1/2 x 3/32" |
| Pedals | Not included |
| Brakes | Campagnolo Chorus dual pivot brakes, Campagnolo Chorus levers |
|---|
| Headset | 1" Campagnolo Chorus |
|---|---|
| Handlebar | TTT Forma SL |
| Stem | TTT Synthesis |
| Saddle | Buyer's choice |
| Seatpost | Campagnolo Chorus, 27.0 mm diameter |
| Hubs | Front: Campagnolo Chorus, Rear: Campagnolo Chorus cassette |
|---|---|
| Rims | Mavic Reflex SUP, 32-hole |
| Spokes | Wheelsmith stainless steel, 2.0mm double butted |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 23c Continental Grand Prix |
| Wheel Size | 700c 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 Use these as a historical reference, not for size-specific fit.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 | 558.8 mm |
| Head-tube angle | 73° |
| Seat-tube angle | 72.5° |
| Chainstay / rear center | 421.6 mm |
| Wheelbase | 1003.3 mm |
| Fork offset / rake | 43.2 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Parts & serviceability

170mm, 36/52t
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: 1997 Bilenky Trans Am Inox · Road race & triathlon · Published sizes: Custom
Archived: Frame: Lugged · Fork: Bilenky · Columbus Metax, semi-sloping crown
Archived: Group: Campagnolo Chorus · Shifters: Campagnolo Chorus Ergo · Front derailleur: Campagnolo Chorus, bottom-pull/clamp-on 28.6 mm · Rear derailleur: Campagnolo Chorus · Crankset: Campagnolo Chorus · Bottom bracket: Campagnolo Chorus, 111 mm spindle · Rear cogs: 8-speed, Buyer's choice of gearing · Chain: 1/2 x 3/32"
Archived: Brakes: Campagnolo Chorus dual pivot brakes, Campagnolo Chorus levers
Archived: Wheel size: 700c wheels · Rims: Mavic Reflex SUP, 32-hole · Hubs: Front: Campagnolo Chorus, Rear: Campagnolo Chorus cassette · Front tire: 700 x 23c Continental Grand Prix
Archived: Headset: 1" Campagnolo Chorus · Handlebar: TTT Forma SL · Stem: TTT Synthesis · Seatpost: Campagnolo Chorus, 27.0 mm diameter · Saddle: Buyer's choice · Pedals: Not included
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.