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benjaminbunny

Member since Nov 2008 • Last active Oct 2019
  • 13 conversations
  • 590 comments

Most recent activity

  • in Bikes & Bits
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    Most Surly frames have 72 degree seattube and headtube angles which is the same as many 50s/60s frames. Frames of the period typically had either 71 ST and 73 HT or 72 parallel angles.
    650B wheels may be unecessary. There is often enough clearance for 700C with 42mm tyres and mudguards in these frames, although some don't have enough width between chainstays.
    A 700C wheel with 40mm tyres has the same outer diameter as 27 x 1.1/4 inch.

  • in Current Projects
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    Some pictures from a longer ride, around 125 miles at the weekend:






    I took a mainly on road route, until reaching the bridleway around Staverton Thicks and then getting lost in Rendlesham Forest.
    The return route to Norwich was a bit more off road via any bridleways I could spot on my map; I left the road at Iken, followed the path from Snape Maltings to Aldburgh, then along the coast path from Thorpeness to Dunwich . The last part of the beach from Minsmere to Dunwich is unridable, so more walking pushing the bike through shingle.

  • in Current Projects
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    Finished and taken for a test ride.

    The gears are working perfectly and the chainring engages with the chain smoothly and silently. Tyres roll nicely too, it doesn't really feel any slower than my road bike.

  • in Current Projects
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    Deckas 44t narrow wide chainring:

    Am i going to experience any problems running an Ultegra 8 speed bar end shifter with XTR derailleur and 7 speed cassette?

    And is it better to run the gear cable on just on the bottom part of the drops, or all the way underneath the bartape to exit near stem? will it be too tightly bended?

  • in Current Projects
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    Sorry, I meant Wilco, not Wilkinsons or Wilkos. They are sometimes good for cheap basic bike parts. I thought they were a national chain, but it seems they only have stores in East Anglia and Yorkshire. It was bought 8 years ago for the previous build of this bike. I think it's one of these: https://www.amazon.co.uk/ETC-Threadless-­Headset-Steel-Black/dp/B0063HN4OS/

  • in Current Projects
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    New parts:

    Selcof Sterrato bars, Holdsworth stem, Tektro RL520 levers and Shimano bar end shifters.

    The shifter didn't fit in the bars. So first I tried using a grinding point to remove some material from inside diameter:

    Unsuccessful! Next I tried brace and flatbit, which worked:

    Bars and stem fitted with temporary spacers:

    The forks are 1.1/8in A head and cut a little shorter than I would like. I found a low stack (22mm) headset in Wilkinsons. I presume I will be ok with the steerer tube inserted 3/4 of the way into the stem?
    The original forks would have been 1.1/8 threaded.

  • in Current Projects
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    Cheap wheels and brakes from Bankrupt bike parts fitted.


    Shimano Altus hubs to Mach 1 rims with a 12 - 28 cassette. They needed a lot of truing.
    Tyres are Conti Double Fighters.

    The V brakes are Tektro 823A . There is plenty of room for adjustment and would work with 650B x 38 wheels.

    A test ride confirms that I really don't like straight handlebars. Selcof Sterrato bars and a Holdsworth stem have been ordered.
    I will also need a bigger chainring. 44 teeth will probably be the best option, giving gear inches of 94.4, 80.9, 70.8, 62.9, 56.7, 47.2, 40.5.

  • in Current Projects
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    Selle Italia Expedia.

  • in Current Projects
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    Shingle street / Rendlesham Forest area.

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