Fly have wanted to create a more trails specific frame since the release of the Sierra, so with a few geometry tweaks the Motosierra was born. The Motosierra Frame is built with 4130 Chromoly throughout with Japanese Sanko Triple Butted tubing to increase strength. The headtube and bottom bracket are both CNC machined and heat treated while the dropouts and seat clamp are invest cast and heat treated creating a truly indestructible frame. This frame also features welded chainstay brake mounts and a cable-through seat tube system that keeps the brake cable securely fixed out of the way. ###section### Product Specs MATERIAL: 4130 Chromoly HEAD TUBE ANGLE: 74° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 14" BB HEIGHT: 11.5" WHEEL SIZE: 20" STANDOVER HEIGHT: 9.25" DROPOUT SIZE: 10mm HEADSET TYPE: Integrated BB TYPE: Mid BRAKE MOUNTS: Welded GYRO TABS: None WEIGHT: 2.2kg (4.85lbs) ###section### Product Highlights Longer Backend and Mellow Headtube Angle for stability Best suited for Trails and riding fast High-quality Chromoly construction Seamless Japanese Sanko Tubing Built in chain tensioners ###shogun-image-section###
With their Sierra frame taking on a more trials influenced geometry, Fly gave the Sierra seat an update to match. It's a railed style seat that has that classic shape, utilising a large railed base, 5mm thick foam and a 100% synthetic leather top that features an embossed Motosierra logo.