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Bicycle Obsession

Goin' Crazy in 2009

  • Offroad Riding - 13002.72 miles [289]
  • Aborted Riding - 61.00 miles [3]
  • Turbo Trainer - 33.70 miles [3]
  • (TOC) 13063.72 miles
  • (TA) 13097.42 miles

Hurtin' in 2008

  • Offroad Riding - 10602.84 miles [300]
  • Turbo Trainer - 130.20 miles [8]
  • Running - 114.56 miles [24]
  • Aborted Riding - 37.20 miles [2]
  • (TOC) 10640.04 miles
  • (TR) 114.56 miles
  • (TA) 10884.8 miles

Riding in 2007

  • Offroad Riding - 8365.93 miles [300]
  • Road Riding - 3599.80 miles [70]
  • Turbo Trainer - 50.90 miles [3]
  • (TOC) 11965.73 miles
  • (TA) 12016.63 miles

This Week

Riding in 2006

Riding in 2005

Riding in 2004

My Bikes:

Current Gems

  • 2004 Pink Surly 1x1
  • 2000 Kona Kaboom
  • 2006 Santa Cruz Chameleon





Ladies in Waiting

Magic Endorsed Products


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27 Aug 2007 at 18:50

I am /more/ than interested in this concept. Looks like I'll be looking at Spot Brand frames in '08.

Damn they be 'spensive.

I bet it feels like walking barefoot across a freshly mown lawn, oh! that'd be awesome.

I wonder why they haven't just made the drop out from two parts with a bolt pulling the and bottom together? Seems a lot simpler than the design on the dropout from Spot.

The People Comment: (15 responses)

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19:57 27 Aug

Yep I was worried about the mud thing and the problems Jericho had with theirs, but the thing Chipps had at Mayhem seemed to work. I'd still like to know about the efficency of the system before signing up.

I guess worse case scenario you can just use a chain, I like the whole weight loss thing as well.


20:22 27 Aug

Get one Matt :)

The beltdrive P7 that Singletrack have had looked good and seems to work really well.


20:29 27 Aug

This design looks better, IMO


20:47 27 Aug

The Orange one is just a prototype. The frame was built around the belt, none of this splitable dropout lark :)


21:06 27 Aug

"none of this splitable dropout lark :)"
Which they will have to do in the end anyway.

The Orange one will never see the light of day, this will


21:53 27 Aug

Time for some new E-stay frames?

Looks interesting. Surprisingly cheap, too.


22:31 27 Aug

/Thinking out loud/

How much tension does the belt have to be under?

More than a tight SS set up?

I wonder how long BB's and rear hubs will last???


22:48 27 Aug

The tension will be only as much as you need, it's unlike a chain as thay's tensioned to stop it flapping off sideways, with this there should be no sideways movement, so therefore you'll run less overall tension.

However you shouldn't really run chain at to much of tension for the reasons you mention.

I guess the tension requirement will be down to how well the belt grips the cog, but it shouldn't be able to stretch under power so therefore no slipping, so less tension require than you'd think.


08:12 28 Aug



09:10 28 Aug

Looks good, makes sense on a SS really

although i think you do have to run quite a lot of tension to pre-load the belt - i think there is still some stretch - it mentions hysteresis so presumable its more of a damped stretch feeling than a BOING feeling :-)


09:32 28 Aug

It'll be like a sturdy elastic band, I guess.. we'll see next year maybe.


17:11 28 Aug

Too Harley Davidson for my liking. Oh, hang on. I'm fat and middle aged. I _am_ their target market. Bollocks.

Technically it looks good. Even though Chipps P7 worked fine at Mayhem my wee niglly-naggly doubts do wonder just how mud clearing that concept really is.


17:58 28 Aug

Doesn't the orange design have a solid drive ring, whereas this Carbon one has holes where the teeth of the band engage so the mud would push though.


19:01 28 Aug

It has holes IIRC.


19:17 28 Aug

Yeah you're right, however it looks very flimsy here

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