Superfly SS

The El Mariachi is gone.  I loved the singlespeed experience, and genuinely liked the El Mar.  Something about our experience just didn’t click.  So the new steed in the garage is the Trek Superfly SS.

This was a 2 year old frame that I picked up, and have built up with a myriad of parts.

SRAM XX1 cranks, 32T chainring.

Schwalbe Racing Ralph tires, 2.4″ up front, 2.2″ in rear, Niner nude carbon fork with carbon steerer.

The wheels are Chris King (SS), generic spokes, red brass nipples, and Stans Arch rims, set up tubeless.

XTR Brakes, ENVE carbon DH bars.

Thomson Stem.

Yeah, there’s a blue Chris King BB in there.  It’s from the Vaya, and I couldn’t bring myself to not use it.

ENVE 27.2 seatpost.

Tons of tire clearance in the rear, with the 2.2s.  2.5s should fit.

I’m ordinarily not a fan of bar ends, but on an SS, the extra leverage can come in handy on big hills.

Ergon SM3 Pro saddle.

Chris King 17T cog.

I was running 34/19 on the El Mar, so 32/17 is a bit faster/harder gearing.  32/18 is identical to 34/19, so if this doesn’t work out, I can swap to a bit easier gear.  A standard chain works perfectly on the XX1 chainring.

Neither the wheels nor the tires are not the lightest out there, but she’s still about 18.5 pounds, fully built.  If you wanted to go flyweight, you could build up wheels with lighter hubs, spokes and rims, run some lighter tires, go lighter on the bars and stem, grips, blah blah blah.  As-built, it’s a bullet.  It’s amazingly snappy.  FAAAAst.  And yet with the big tires, 27.2 seatpost, and carbon frame, it’s surprisingly comfortable, even on chatter off-road.  It positively kills on trails that have rollers (e.g. Saw Wee Kee).  It’s a lot more ‘popable’ than the El Mar–livelier and snappier.  On the other hand, its more aggressive than the El Mar, and not a bike that I’d pick for touring or super-long endurance rides.  But that said, it’s amazing–a super fun bike.  The more you ride it, the more you want to ride it.  More.

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6 thoughts on “Superfly SS

  1. Why are you wasting the XX1 chainring on a SS with sliding dropouts? That’s an expensive chainring (and crankset, since it’s a proprietary BCD) from which you’re not gleaning the benefit of the wide/narrow tooth profile.

    • I wanted a light chainring for a gxp bb, that was set up for a single chainring, and found a great deal on an XX1. As you note, I didn’t need the chain retention, but it was available, cheap, light, strong, elegant, and works perfectly.

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