Saturday, January 7

Custom Fat Bike

I've officially started acquiring bike parts for my first framebuilding project.  Earlier this week I picked up a Salsa Enabler fork.  I decided that the first frame should be a true fat bike... something that can accommodate a 100mm rim and 4.7" tire in the rear.  The Poor Man's Pug has served me well over the years, but the limited rear tire clearance is just that, limiting.

The frame will be based around a 100mm bottom bracket shell, a Salsa Enabler fork, and a 170mm rear hub.  The wider hub and BB should provide enough room to squeeze in a super fat rear wheel... likely a Surly Clownshoe rim with a Big Fat Larry tire.

I chose the Enabler fork over the Moonlander fork due to its longer length.  The Moonlander's axle-to-crown length is only 447mm; pair that with a 260mm steerer tube, and the fork simply won't get my bars high enough without an awkwardly tall stem.  Unfortunately the Enabler I received has a 300mm steerer instead of a 350mm steerer as listed on the Salsa site.  It should still be tall enough (468mm a-c length plus 300mm steerer).  My guess is that Salsa changed the stock length but didn't update their website.

The Enabler fork may not provide as much tire clearance as the Moonlander, but the extra 61mm of overall height is worth the loss of tire clearance.  I'm leaning toward a Rolling Darryl front rim anyway... to save on both money and weight.  At 2 meters tall, it's nearly impossible to find a production mountain bike that allows the handlebars to be the same height as my seat.  Front end height is almost always too low, even on XL sized frames.

I'm excited to continue getting parts, start building the frame, and eventually riding a fat bike built just for me, by me.  This will also free up my modified 1x1 frame... with a frame that versatile it will be fun to come up with a new build for it.


Stopping is half the fun...

5 comments:

Herringbone said...

"...built for me,by me..." Outstanding.

Biggs said...

I think I saw the PMP out two weekends ago down by the river bottoms. I was on the powder blue rigid single speed, my friend left her gloves on top of the car and almost drove away. Was that you? I feel like we have crossed paths a few times and never introduced myself.

FTMN said...

Hey Biggs,
I don't think that was me... unfortunately I haven't taken the PMP out since early December. But I'll keep an eye out for a Powder Blue rigid SS from now on! Is it a Salsa El mar? Raleigh Monocog?

Biggs said...

My single speed is not nearly that nice. Mid 90's Specalized rock hopper or stump jumper (can't remember) with single speed drop outs I made and brazed on, with a black On One front fork (29er up front, 26" in the rear). It's a bit of a parts bin bastard bike that just seems to work way too well.

I know I've seen the KHS outside of Hiawatha cyclery, can't remember which bike I was riding, probably my dirt drop bar (or h bar) Kona Unit 2-9. Also on MPLS bike love

FTMN said...

I thought I knew the name Biggs from somewhere... I remember seeing your Kona on Bike Love a while back. Definitely say "Hey" next time you recognize my bike!