Ok, so I've been making frames for a few years now and this one is the first suspension frame I've made which is damn near production quality. I have a number of small improvements to make on the design, mainly to get it to said production state, but already I am so pumped. I finally took it out for a little ride around campus last night and it was awesome. I dropped it a few times (about 8 to 10 feet, depending on speed) and to say I felt the landing would be a lie. I'm pretty stoked for this one! Surprisingly, it is VERY stiff. I was going to add a swinglink, but I don't know if I'll even need to anymore. I probably will anyway for the next one. And yes, Zedro, I'm going to put a brace in the swingarm up by the bulkheads. Heavy Bicycle Company 3R Specifications ***Geometry*** Frame Construction: Aircraft 4130 Chomoly Steel Rear Travel: 8" Head Angle: 66* (8" fork) Bottom Bracket Height: 15" (static) Chain Stay Length: 16.875" Wheel Base: 45.75" Seat Post Height: 15.5" Seat Tube Angle (Effective) 73* Seat Tube Angle (Actual) 66* Top Tube (Effective) 24.5" Top Tube (Actual) 23.4" Front to Center: 29" Rear Axle: 12mm thru axle Tire Clearance: 2.75" ***Components Specs*** -Prototype:- Head Tube: 1 1/8" Bottom Bracket Type: Euro Bottom Bracket Width: 100mm Rear Hub: 150mm (dished for 165mm spacing) Rear Damper: 9" e2e 2.75" stroke Seat Post: 27.2mm -Production (Intended):- Head Tube: 1 1/8" Bottom Bracket Type: Euro Bottom Bracket Width: 83mm Rear Hub: 135mm (dished for 150mm spacing) Rear Damper: 9" e2e 2.75" stroke Seat Post: 27.2mm ***Frame Features:*** >This frame utilizes the Heavy Modular Dropout System which allows it to use most dropouts we manufacture. >High-back pivot location makes for a rearward arcing axle path which is similar to the direction the fork compresses. This allows the bike to maintain speed through rough terrain and harsh landings. >Neutral chain routing - Because of the high pivot and the huge amounts of chain grow, the chain is routed via a neutral pulley around the pivot. The benefit of this, apart from zero drive line chain growth, is that the pedaling forces are reduced. Of course, given the nature of the bike, the body's own mass shifts during pedaling will induce some frame bobbing, however there is no suspension lockout or compression/extension caused from actual drive forces. >Floating disc brake mount eliminates brake jack.