Chromoly steel construction throughout the frame

They're built from 100% 4130 heat treated and butted chromoly that's really strong and durable while still coming in at under 900 grams

Fit's Indent arms feature a concave design which increases strength and dent resistance with their 4130 CrMo construction backing that durability

the fork legs are tapered with internal butting and feature 4mm thick laser cut dropouts

the Sierra is an exact replica of that frame that now perfectly fits riders between 7 to 11 years old

Profile Mini Titanium Splined Driver with Chromoly Cog Size:14t Chromoly steel construction throughout theThe Profile Mini Splined Titanium Driver is a replacement driver designed for Profile Mini cassette hubs only. Upgarde your standard driver with titanium splined driver that delivers less weight and more strength, this driver comes with a chromoly cog included. Weight: 0. 18 lbs (82g)