Last updated: Please note - for new model year (2018) information, please contact us at Velotech Cycling Ltd or, if outside the UK, refer to your local branch or to Campagnolo Italy.
The new Centaur 11, Potenza H11 and Chorus, Record and Super Record HO mechanical and HO EPS groupsets have some important differences and specific areas of compatibility that bicycle assemblers and early after-market adopters need to be aware of, which we have not yet had opportunity to transmit to smaller OEMs or CODE dealers / Pro Shops.
Please tell me the serial number of your Olmo road bike, the parts that are original to the bike, particularly dated parts (see below), and link/provide photographs, so I can add it to this registry.
This Olmo serial number registry records dated bike parts or provenance, to attempt correlating a serial number to a year or year range. Serial numbers are stamped on the seat lug on older bikes, or on the bottom bracket underside on later bikes (sometimes matched by a serial number on the fork steerer tube).
C1232 outer ring marked: RD874905 C45 rings marked: REGDAPPDFOR Alloy adaptor is marked: regd 909182 (the patent number).
Alloy 151 PCD rings: regd 908786 Year of manufacture is marked on the cranks and rings, usually below the sword (only exception the alloy rings and adaptor).
The rear derailleur freewheel/cassette and chainwheels are probably the first to be changed on a bike.
On a vintage bike in excellent condition (that apparently had a lonely existence in a garage) all of the components likely are original.
OLMO with red background on left side of top tube is unfamiliar on other Olmos.
Bike has later Olmo decals added on seat tube, top tube, and down tube. Olmo jjokcha/e Bay: Swallow rondine lugs with no seat lug side slots; chrome head lugs and fork crown; chrome stay and fork ends; Campagnolo Cambio Corsa dropouts and fork ends; no top tube brake cable braze-ons; 5558 stamped on side of seat tube below seat lug [cannot see if there's a serial number stamped behind the seat lug; seller says the frame size is 56 cm] DECALS: Head badge and seat tube decal with Olmo 'Lazy L' star logo; OLMO in white block letters within white oblong outline on downtube Serial Number 108 1950s? Olmo Sport Guillermo Pelegrina//docbilly/bikeforums.net: Swallow rondine lugs with no seat lug side slots; seat post clamp bolt at front top side of seat lug; forged long horizontal Agrati dropouts with scalloped backs; Headbadge is Olmo 'Lazy L' star logo; shifter braze-on at front of top tube, with cable internal to top tube; generator/dynamo bracket on right front fork; [Rear brake cable runs inside top tube?
Track/pista frames are not included in this registry. A TIPO RONDINE decal may or may not appear on some older Olmo bikes, and refers to the Agrati AM lugs, with 'rondine' meaning 'swallow.' Some older Olmos have the ornate Agrati lugs which Emilio Bozzi sold as Brianza sportiva lugs; the accompanying Agrati rear dropouts are stamped with a scalloped back. Campagnolo crank arms have a date code starting in 1973, consisting of a diamond (1970's) or circle (1980's) with a number in the center denoting the last digit of the year of manufacture, and then in 1985-9 with square and number in the center: 11 = 1985, 21 = 1986, 31 = 1987, 41 = 1988, 51 = 1989 plus some other examples. after the year of an Olmo in this registry designates uncertainty about its year or range of years.