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Eliminate Dropped Chains

The LoneWolf Aero Chainguide is a lightweight, sleek, reliable option to prevent dropped chains in road, gravel, and CX races. Think of it as 30g of insurance, where a dropped chain could cost you a shot at the podium.

Trusted In Cycling’s Biggest Races

Team Jumbo-Visma trusts the LoneWolf Aero Chainguide on their team bikes. It prevented dropped chains on the storied cobbles of Paris-Roubaix, won the Giro d’Italia, and is on board for The Tour de France. It was also on the winning bike at Unbound Gravel 2023 in some truly epic, muddy conditions.

Designed For 1x

The LoneWolf Aero Chainguide is compatible only with bikes that have a 1x drivetrain. This is because it uses the mount in place of a front derailleur. It can be paired with round and oval chainrings on road, CX, and gravel bikes.

Adjustable Coverage

The head of the LoneWolf Aero Chainguide must be within 2mm of the chain to be effective at preventing dropped chains. Three base sweep options cover a wide range of possible chainring diameters, see the compatibility section to find which model is right for your setup. Our unique GuideLock quick adjustment system provides 8mm of positioning for chainline.

We believe in your right to be able to fix your components. Crashes happen, parts get misplaced, things go bump in the night. All individual pieces of LoneWolf Aero Chainguide are available individually as replacement parts, just like other Wolf Tooth components that have multiple pieces.

The Wolf Tooth LoneWolf Aero Chainguide for Cervelo prevents dropped chains on select Cervelo models when equipped with a 1x drivetrain. This product has been tested and developed alongside Team Jumbo-Visma, who have been racing with this in some of road cycling’s biggest races, winning the Maglia Rosa, Maillot Jaune, and Maillot Rojo in 2023. 



• Compatible with Cervelo S5 and P5 bikes that have a braze-on front derailleur mount
• Mounts directly to the frame in place of the braze-on
• Only for use with 1x drivetrains
• Head has 8mm of adjustment for chainline via our GuideLock quick adjustment system

Compatible Chainrings
Frame High Sweep Mid Sweep Low Sweep
S5 54T - 60T 48T - 54T 42T-48T
P5 54T - 60T 48T - 54T 42T-48T
Caledonia/Cal-5 54T - 60T 48T - 54T 42T-48T
Soloist 54T - 60T 48T - 54T 42T-48T
Aspero/Aspero-5 50T - 56T 44T - 50T 38T-44T
R5CX 48T - 54T 42T - 48T 36T-42T


Related products

Drop-Stop® chainrings

GnarWolf Chainguide

LoneWolf Aero Chainguide

Right To Repair

Tech Specs

Weight:  High Sweep: 27g | Mid Sweep: 31g | Low 30g
Material: 6061-T6 with stainless steel hardware
US Patent 

  WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.