Wednesday, 26 October 2016

Tech Talk: Lauf Grit

Lauf Grit

Those with a keen eye for bicycle developments will have taken note of the rise in gravel bikes – road bikes with wider tyres, relaxed geometry and a go-anywhere attitude. When it comes to crossing loose, rough roads, their slacked-out angles give stability and confidence while wider treads aid grip and comfort. However, when things get really bumpy or roughness is maintained for a prolonged period, fatigue and discomfort aren’t far away. 

The Grit has a carbon main body with two carbon lowers, which are attached to the main body by 12 glass-fibre leaf springs. The wheel sits on a bolt-thru-axle between the lowers that moves in relation to the upper and provides the suspension. the fork sits nicely into around 6mm of sag and the (sagged) AC length of 409mm shouldn’t mess up your geometry. 

That's looking weird eh?

Whereas traditional suspension forks have stanchions moving past seals into a lower, the leaf spring design of the Grit means there are no moving parts creating friction between each other. Usually it’s this friction that kills high-frequency buzz and so the ride from the Grit is incredibly smooth. 

While most suspension forks allow adjustments to compression and rebound, and often lock-outs, the Grit has none. Lauf argues that the short travel and stiff-ish spring means that there’s little need for adjustment. The glass fibre springs themselves have a bit of damping in them. The carbon construction means that the fork is light, coming in at a claimed 900g. That's heavier than a regular carbon road fork but considerably lighter than most suspension forks. Be warned, it does have a rider weight limit of 110kg.

Flat Mount Brake Spacing

You must read it before install the caliper

The Grit should be compatible with most gravel bikes on the market, with a tapered 1 1/4–1 1/8” steerer, and included 1 1/2” adaptor, 160mm (min) flatmount brake spacing (It’s designed around a 160mm rotor minimum. So, to run a standard disc brake caliper on a 160mm rotor, you’ll only need the 140mm spacer), 12x100 and 15x100mm axle options and 700x42c (or 27.5” x 2.1”) maximum tyre size.

Love it or hate it


Ride On!

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