We've just got our hands on a titanium 29er from Pipedream Cycle – it's called the Skookum and is a singlespeed, belt drive hardtail retailing for £2,699, or £1,175 for the frame only.Belt drives aren't new in terms of ...
We've just got our hands on a titanium 29er from Pipedream Cycle – it's called the Skookum and is a singlespeed, belt drive hardtail retailing for £2,699, or £1,175 for the frame only.Belt drives aren't new in terms of technology; they use the same principles and manufacturing techniques that car cam belts employ. But with chain-driven transmissions being the dominant force when it comes to two wheels, a belt drive makes for an interesting bike.The titanium frame is intriguing because, for obvious reasons, you can’t split a belt to fit it round the chainstay. Therefore, you need to be able to separate the frame – temporarily – so the belt can be fitted. That's why the Skookum's chassis features a threaded coupling part-way up the driveside seatstay. A tool is supplied to loosen or tighten the coupling – once unscrewed, the frame can spring apart just enough to pop the belt in or out.The driveside seatstay comes apart hereThe Skookum is essentially the same as the well established, 26in-wheeled Pipedream Sirius hardtail, but with 29in wheels and a shorter fork travel – it’s designed to work with an 80-100mm fork, in this case a 100mm X-Fusion Slide 29 air unit. The wheels are Halo Vapours wrapped in the same brand's Choir Master tyres, stopped by Hope Tech Evo X2 brakes.You can spec a variety of other options, including an eccentric bottom bracket and cable routing for a geared Shimano or Rohloff hub. It can be built with a standard chain transmission, too. Our test model's 44mm head tube, belt coupling and sliding dropouts pushed the bare frame price from £989 to £1,175.Gusset parts make up the cockpitPipedream's belt drive of choice is the Gates Carbon Drive 22T singlespeed. Claimed weight for a typical Gates belt is under 100g, against more than 200g for a chain. To stop the belt slipping off, Pipedream’s setup uses the CenterTrack system, with a single central raised ridge on the sprocket and chainring that mates with a slot running the length of the belt. Cranks are Truvativ X9s, with Gusset providing the bar, stem, and saddle. The dropper seatpost is by X-Fusion.A full review of the Pipedream Skookum is coming up in issue 149 of What Mountain Bike, on sale 4 June. For more information on Pipedream bikes see www.pipedreamcycles.com.