The other main iteration of this AMPeirce: 29+ hardtail. While I find riding our local mountain bike trails surprisingly good in ‘full fat’, this guise is that bit better. Especially when it comes to moving faster over things rocky.
Yesterday was a maiden ride out at Kalamunda, with some time to learn tyre pressures and adjust gears while enjoying a lighter, nippier response allowed by the lighter set-up (no Rohloff).
So much fun that no photos were taken, so some shots from this morning to illustrate instead.
A reminder of the ‘fat’ to set the scene. The tyres/rims obligate a Rohloff hub for gears in this non-offset frame. A rigid fork and bar-roll friendly Jones H-bars have been gladly retained having thoroughly earned their place on the CSR
This is the lighter, faster trail machine. The Reba 29 RLT fork is set for 100mm travel which lifts the front end a touch compared to the rigid fork. I have the option to lower it to 80mm, but the ride didn’t suffer for the longer travel. The standover in this mode is as high as fits me – but not too high.
The bars are different for a wider, more climbing friendly control.
The crank/chainring are the same, but the drop-outs are swung to their inner most position. Still enough chainstay clearance and the cable routing across the ‘plate’ works a treat.
Some modification has been needed to allow the 29×3.0″ Surly Knard tyre to fit through the fork arch unhindered. This rim gives a taller, but narrower profile over the other options. I’ll likely take some more off the sides as there was a bit of rub on aggressive cornering. I’ve also beefed up the axle to stiffen things in compensation. Other forks give a similar effect without losing metal.
This Hope SS/Trials hub with bolt-through axle is much lighter than the fat-Rohloff and stiffens the rear end too. Although singlespeed is possible, I’ve allowed my knees the luxury of some gears. This selection cover the range I need pretty well, but does force me to free-wheel (loudly) on the fastest downhill stretches.
The final addition that will make this bicycle complete is a Porcelain Rocket framebag. The front triangle has more bottle cage bosses than useful for just that purpose – and are there to secure the bag without as many straps as normal. Work this weekend limits an immediate repeat foray, though temptation is sorely there. Much more to come :-)