Uploaded March 2026 | Updated September 2026, 2 weeks ago
Shimano and SRAM might want you to forget these bikes exist, but there is a certain perfection in a high-end mechanical rim-brake build that modern integration just hasn't replaced.
In this video, we take a classic (but neglected) Cervélo R-Series and give it the full Mapdec treatment. From discovering a dangerous glue failure in the steerer tube to the lost art of Campagnolo cabling and the precision of facing a bottom bracket—this is a masterclass in why these bikes are absolutely worth saving.
We’ve equipped this climbing specialist with a Campagnolo Centaur 11-speed groupset and Praxis shorter cranks to give it the gear ratios the Lake District hills actually demand. No batteries, no bleeding brakes—just pure mechanical satisfaction.
Learn the Craft with Mapdec
If you want to go deeper into the technical side of bike maintenance and join a community of like-minded riders and mechanics, come join us over on Skool.
👉 Join the Mapdec Community on Skool: skool.com/mapdec
Chapters
0:00 – The Story of the Rim Brake Cervélo
0:43 – Why Campagnolo Centaur?
01:20 – The Seized Bottom Bracket Problem
02:32 – Major Safety Issue: Cervélo Steerer Failure
04:34 – Facing & Reaming: The Professional Way
07:22 – Protecting the Frame (Helicopter Tape)
08:14 – The "Lost Art" of Headset Reaming
09:12 – The "Waterproof" Grease Secret
10:32 – Choosing the Right Handlebar (Deda Zero 100)
12:14 – The Specifics of Campagnolo Cabling
14:26 – Fixing the Gearing: Praxis Shorter Cranks & 30mm Axles
18:46 – Installing the M30 Bottom Bracket (No Creaks!)
21:41 – Cable Detailing: Why Logos Matter
27:00 – Ryan Builds Wheels & Rim Quality
29:43 – How to Perfectly Center Rim Brakes
31:47 – Setting Up the Rear Mech & Limit Screws
33:51 – The "Peening" Trick for Campy Chains
36:56 – Bar Tape Controversy: The "Motorcycle" Wrap
40:16 – Final Polish & Safety Checks
41:16 – The Finished Build: Is it Still Relevant?
Shimano and SRAM might want you to forget these bikes exist, but there is a certain perfection in a high-end mechanical rim-brake build that modern integration just hasn't replaced.
In this video, we take a classic (but neglected) Cervélo R-Series and give it the full Mapdec treatment. From discovering a dangerous glue failure in the steerer tube to the lost art of Campagnolo cabling and the precision of facing a bottom bracket—this is a masterclass in why these bikes are absolutely worth saving.
We’ve equipped this climbing specialist with a Campagnolo Centaur 11-speed groupset and Praxis shorter cranks to give it the gear ratios the Lake District hills actually demand. No batteries, no bleeding brakes—just pure mechanical satisfaction.
Learn the Craft with Mapdec
If you want to go deeper into the technical side of bike maintenance and join a community of like-minded riders and mechanics, come join us over on Skool.
👉 Join the Mapdec Community on Skool: skool.com/mapdec
Chapters
0:00 – The Story of the Rim Brake Cervélo
0:43 – Why Campagnolo Centaur?
01:20 – The Seized Bottom Bracket Problem
02:32 – Major Safety Issue: Cervélo Steerer Failure
04:34 – Facing & Reaming: The Professional Way
07:22 – Protecting the Frame (Helicopter Tape)
08:14 – The "Lost Art" of Headset Reaming
09:12 – The "Waterproof" Grease Secret
10:32 – Choosing the Right Handlebar (Deda Zero 100)
12:14 – The Specifics of Campagnolo Cabling
14:26 – Fixing the Gearing: Praxis Shorter Cranks & 30mm Axles
18:46 – Installing the M30 Bottom Bracket (No Creaks!)
21:41 – Cable Detailing: Why Logos Matter
27:00 – Ryan Builds Wheels & Rim Quality
29:43 – How to Perfectly Center Rim Brakes
31:47 – Setting Up the Rear Mech & Limit Screws
33:51 – The "Peening" Trick for Campy Chains
36:56 – Bar Tape Controversy: The "Motorcycle" Wrap
40:16 – Final Polish & Safety Checks
41:16 – The Finished Build: Is it Still Relevant?
