I should say right away, this music video is a little bit… challenging. Probably not suitable for work, certainly not suitable for children and is likely to cause offence.
But hey, it’s my blog and it’s a great song so it’s staying up.
Last time we were doing science, maths, Latin and generally making up new words. Tonight’s post contains graphic images of engineering, detailed descriptions of science and flagrant use of mathematics. Oh and that scary video. You have been warned.
BEHOLD: The Roadgre.
The swoopy looking pannier rack was a bit of an impulse buy as I handed over an envelope stuffed with cash for the frameset. It’s a Portland Design Works (PDW) Payload and it comes complete with a rather fetching bamboo deck to appeal to your inner hipster. Time will tell how well it performs in the cargo carrying stakes (it’s rated to an impressive 35kg / 77lbs) and I’m most interested to see how the double-ply bamboo will stand up to Manchester’s wet and grimy back streets. In the meantime, the cool factor is off the scale and you’ll be unsurprised to learn I’ve been scouring the interwebs for matching bamboo mudguards ever since I first laid eyes on it.
The wheels are Shimano WH-S500, 700c diameter and 17mm wide; quite a bit narrower than the usual 29er offering you’ll find on most Ogres out there but still recommended for tyres up to 37c wide. Until the ice starts settling in, I’ll be running a set of Halo Twin Rail dual compound tyres (700×38) which fit perfectly. In fact, I’ll wager those skinny hoops would quite happily carry a much wider tyre without any problems. When the temperature really starts to drop, I’ll swap over to a set of Schwalbe ice spike tyres (also 700×38); I’ve never ridden with spikes before so that’ll be an interesting experiment.
The front hub comes equipped with a Shimano dynamo hub which I’ll be tying into front and rear lamps with built in standlights just as soon as I’ve settled on a pair with a good balance of features, affordability and lack of ugliness.
The rear hub is the real reason I ended up splurging on these wheels in the first place, it is of course a Shimano Alfine 8 speed internal gear hub (IGH). The IGH is by no means a new thing, in fact just about everyone (whether they cycle or not) has probably heard of the legendary Sturmey Archer 3 speed IGH. When looked after well, those old beauties will probably outlast the frames they’re attached to and even some of the people riding the bikes – it’s no surprise that even today the really good ones from the 1960s and 1970s can be found all over the world, turning out mile after mile of weather-proof, tickticktickticktickticktick commuting.
Do a little research and you’ll discover the woes of the 1980s and 1990s Sturmey hubs when it’s fair to say the company wasn’t exactly at the top of its game. Happily (and with considerable help from Sunrace) modern Sturmey Archer hubs are as good as, if not better than, the classic originals. Essentially, the Alfine 8 speed I settled on is cut from the same cloth; the internal gearing is based on the same basic yet horribly complicated looking principles and, unlike a traditional cassette & derailleur setup, most of the important moving parts are safely sealed away inside the hub, happily swimming around in grease, shielded from the elements.
Front and rear hubs are both compatible with Shimano’s Centrelock disc brake system which is previously unseen and untested here at lifeinthecyclelane so keep an eye out for a report on how they compare to the more common 6 bolt mounting most systems use these days.
As with all Shimano gear, the wheels, cassette mounting kit and cog all come with excellent instructions in a variety of languages; there are even easy to follow pictures if you get tired of searching for the English section.
A word to the wise however: the neatly assembled hub you see above didn’t come about by accident. Nu-uh. First, there is mention of installing a dust cover which, as it turns out, I didn’t need to fit at all but I only realised this after far too many minutes of trying to make something fit that simply was never going to. Happily, once I’d realised the error of my ways and thrown the stupid mangled piece of plastic in the bin, the cog slipped beautifully into place and was held in place with a thumb-torturingly tight snap ring. A real pain to get seated but once it’s on, the cog is firmly snugged up against the hub body. Next comes the weird, cheap plastic feeling cassette joint which requires a little bit of lining up before a so-simple-it-seems-wrong lockring is clicked into place with whatever remains of your bleeding stumps and hey presto it’s all ready to go!
With the wheels finally put together and mounted on the frame, I turned my attention to mouting the matching Shimano Alfine S500 chainset. The external bottom bracket cups went in like a dream and, as I admired the beautiful mirrored black finish and slid the bottom bracket axle through, that horrible realisation washed over me…
Here’s an experiment for you. Head over to Google Images (other high quality search engines are available) and type in “Surly Ogre Alfine 8” and you’ll find loads of ’em out there with the same rear hub as mine. Now, try “Surly Ogre Alfine Chainset” and you won’t find a single one. I didn’t think much of it at the time but I now know why you don’t see the S500 chainset on the Ogre…
The Ogre has a 73mm wide bottom bracket shell and it turns out the Alfine S500 chainset is only suitable for 68mm bottom bracket shells… that’ll explain why the chainring is about to foul the chainstay and there’s still a good 5mm of axle yet to install.
So yeah, whilst fatties might fit fine, what would appear to be a completely logical choice of chainset simply won’t.
Normally, I’d chalk this down to my not doing enough research before buying the parts but at no point in the product description or the multi-lingual instruction pamphlet does it say the chainset is only suitable for 68mm shells. What’s even more strange is that all other Shimano chainsets I’ve come across with external bottom bracket cups are suitable for both 68mm and 73mm shells, you just use or discard a 5mm spacer accordingly.
So. If you have a 68mm wide bottom bracket shell and you’re looking for a 39tooth single speed chainset, drop me a line at firstname.lastname@example.org
For now, it’s back to the drawing board for me as I try to figure out which chainset I now want to use and I’m still waiting for my Jtek bar end shifter to arrive.
In the meantime, I’m sorry to say that the surprisingly disappointing Shimano S500 single speed chainset will be the first entry into the ‘kit I hate’ section.