Uploaded July 2026 | Updated September 2026, 2 weeks ago
Our road video lead, Felix, has built up a Cannondale Synapse to be the ultimate endurance road bike, but did he get it right?
The headline on the bike is the 40mm Pirelli P-Zero Race TLR tyres. These are so wide, not many road bikes have the capacity to fit them, the Synapse being one of the few currently able to squeeze them in.
Run at low enough pressures, Felix hopes these will reduce fatigue without sacrificing too much speed and efficiency. Do you think heβs on to something? Or is it far too wide for road riding? Let us know what you think and if you want to see a BikeRadar Diaries video of the ride in the comments!
Chapters:
00:00 intro
00:47 40mm Pirelli P Zero Race TLR Tyre
01:57 Shimano 105 Di2 & GRX 12-speed drivetrain
03:55 Transatlantic Way ultra cycling event
05:26 Contact points (saddle, stem, handlebar & aero extensions)
07:35 Cannondale Synapse 4 frame features
09:53 Exposure Revo 5 dynamo light
10:54 HUNT 40 Carbon Gravel Dynamo Wheelset
11:33 Apidura bikepacking bags
Listen to the BikeRadar Podcast
π bikeradar.com/bikeradar-podcast
Follow BikeRadar on our social media channels:
π instagram.com/bikeradar
π facebook.com/bikeradar
π twitter.com/bikeradar
BikeRadar is supported by Mountain Biking UK and Cycling Plus Magazine βFor more information and to subscribe please visit
π bit.ly/3nMr3Rn
For more content like this see our latest subscription offer β
π cyclingplus.com/subscribe-today
π mbuk.com/subscribe-today
Our road video lead, Felix, has built up a Cannondale Synapse to be the ultimate endurance road bike, but did he get it right?
The headline on the bike is the 40mm Pirelli P-Zero Race TLR tyres. These are so wide, not many road bikes have the capacity to fit them, the Synapse being one of the few currently able to squeeze them in.
Run at low enough pressures, Felix hopes these will reduce fatigue without sacrificing too much speed and efficiency. Do you think heβs on to something? Or is it far too wide for road riding? Let us know what you think and if you want to see a BikeRadar Diaries video of the ride in the comments!
Chapters:
00:00 intro
00:47 40mm Pirelli P Zero Race TLR Tyre
01:57 Shimano 105 Di2 & GRX 12-speed drivetrain
03:55 Transatlantic Way ultra cycling event
05:26 Contact points (saddle, stem, handlebar & aero extensions)
07:35 Cannondale Synapse 4 frame features
09:53 Exposure Revo 5 dynamo light
10:54 HUNT 40 Carbon Gravel Dynamo Wheelset
11:33 Apidura bikepacking bags
Listen to the BikeRadar Podcast
π bikeradar.com/bikeradar-podcast
Follow BikeRadar on our social media channels:
π instagram.com/bikeradar
π facebook.com/bikeradar
π twitter.com/bikeradar
BikeRadar is supported by Mountain Biking UK and Cycling Plus Magazine βFor more information and to subscribe please visit
π bit.ly/3nMr3Rn
For more content like this see our latest subscription offer β
π cyclingplus.com/subscribe-today
π mbuk.com/subscribe-today
