2019 Factory Trials Bikes—David Avendaño’s Vertigo Motors

The seven-time Venezuelan champ’s fuel-injected 300cc two-stroke bike.

David Avendaño's 2019 Vertigo Combat Vertical R.
David Avendaño starts with a standard 2019 Vertigo Combat Vertical R and makes a few adjustments to get the feel and performance he is looking for.Shan Moore

Seven-time Venezuelan trials champion David Avendaño is riding the NATC/AMA US National MotoTrials Series this year for the US Vertigo importer, Vertigo Motors USA. So far, Avendaño has established himself as a podium regular, and after the first four rounds sits second in the series standings in the Pro class. Vertigo is a relatively new player in the trials scene, so we had Avendaño give is a tour of the 2019 Vertigo Combat Vertical R 300, which is a fuel-injected two-stroke.

For starters, Avendaño says he likes a faster-acting clutch than the one that comes stock; the reason being so he can get a quick burst of power for big jumps and splatters. According to Avendaño, the Vertigo factory builds different clutch packages for each of its top riders.

David Avendaño's 2019 Vertigo Combat Vertical R with Renthal Fatbar.
Avendaño swaps the stock Vertigo handlebar for a Renthal Fatbar. He also runs his levers fairly high so he can easily reach them on descents.Shan Moore

Avendaño swaps the stock handlebar with a Renthal Fatbar, which is a little bit taller and wider. He also runs his levers in a very high position so he can easily reach them when he has his weight over the rear wheel, such as when going down a very steep hill or drop-off.

When looking at the suspension, the fork on the Combat Vertical R is made by Tech, and Avendaño doesn’t change it. The shock spring is replaced with one that is more suited to his weight. In Avendaño’s case, he uses a stiffer spring than the stocker. He also likes his Reiger shock to be “bouncier” for big steps and when hopping on the rear wheel, so he sets it up to rebound faster than normal.

David Avendaño's 2019 Vertigo Combat Vertical R with 42-tooth rear sprocket.
Avendaño runs a 42-tooth rear sprocket instead of the standard 41 so he can use third gear more often.Shan Moore

“[The shock] is very fast when it goes to the top [of the stroke],” Avendaño explains. “I care more about the back of the bike [because that’s] where I get all the traction.”

The footpegs are S3 Hard Rock aluminum units, which are very wide. The Vertigo comes with Dunlop tires, but Avendaño prefers to use Michelin tires. He always runs 4.5 pounds in the front, but will run different pressures in the rear depending on the size of the obstacles.

David Avendaño's 2019 Vertigo Combat Vertical R with clutch assembly.
The Vertigo factory provides Avendaño with a clutch assembly that reacts a bit faster than the stocker.Shan Moore

“The Nebraska round is in a rock quarry, so for those kind of medium-size rocks, I use 4 pounds, but for bigger rocks, I run 4.5 or 5 pounds,” he said.

Avendaño swaps the standard 41-tooth rear sprocket out with a bigger 42-tooth sprocket so he can use third gear more often. When asked if he does anything to the cylinder, he says he doesn’t on the 300 model.

“In the 300 we leave it standard, but in the 250 we modify it,” he concluded.