Search results for:

Haha aye always worth asking

Yep I’ve tried lots of different suppliers but very happy with the quality of the 4130 plain gauge I get from Ceeway. All the stem building supplies I listed in my thread can be had from there.

Ceeway

Sure: 35 x 1.5 bar clamp, 31.8 x 1.5 steerer clamp, 28.6 (or 31.8) x 0.8-1mm for the extension depending on rider weight, intended use etc

I was making a couple of stems on Friday afternoon so bashed on with making one for this at the same time.

Managed to get it brazed up, just need to finish and slot it

Making steady progress on this...just got to braze in the bridges and small braze ons then clean up.

Er yeah just a brazed on one rather than something fully integrated/internal/clever/time consuming

Put in a few extra hours this eve to get the TT/ST/SS cluster finished off

Got sick so had to take a week off but I'm back in the game and hoping to get this finished (ready for paint) before going home for Christmas.

I've decided on parts and pretty much everything is already here or on the way.

Antelope Hill 700x55 looking comedy mounted up!

So long as the headtube they’re being brazed into is well faced and reamed so that the cups aren’t under tension there should be minimal distortion from heat, so in this case no

Hmm food for thought but I’m gonna take my chances I think

Gotta strike while to motivation is hot!

Paint...well I want it to blend in when locked up but still bring a smile to my face...if the painter does good with my track bike I think that’s the brief I’ll give him.

He just did a deep metallic blue frame with oil spill effect logos which was lovely. Like that but black would definitely fit the bill above for me.

Looks amazing, super practical and comfortable! I’m just curious about the spacing and chainline...track standard? Actually if you have a geo chart I’d love to see it...

Yo @Rodolfo thanks for the input. Bikes sounds rad too, let’s see it!

Have you been stopped before or since? I’ve been here about 18months now and never been stopped so I’m leaning towards option 2. I reckon I’ve got the ways and means to get a rear brake on there given 2 weeks if need be.

HT junctions finished

It was a busy weekend!

#straightfromthetorch

Tacked!

Tubeset spec:

• 44mm HT
  Zona maintubes
  
• 38 DT
  
• External butt 28.6-29.8 ST
  
• 31.8 TT custom formed at ST end to 36x28 oval
  
• 39mm BB shell
  Life short taper rear end
  
• Cross bend chainstays
  
• Single bend seatstays
  

I had to add material and reshape the dropouts (same as on my Bahnrad) to get the seat stays to run nicely into them

From here it's into the build :)

More chainstay processing

Sehr gut

Nice one, yeah I was curious what you'd managed to squeeze in there and how as I remembered it had DA cranks

As @Eamesy alluded to it's a little problematic to squeeze a chainstay between a fat tyre and a track crackset and I also didn't want to use a yoke.

My mindset is usually to stick to standards and ensure some cross compatibility between bikes and components: if this crank breaks then I can nab the one from my track bike etc etc but this bike is being built to meet my specific needs and once finished will be left as is and ridden rather than fettled with. So on this one I'm making a departure from track standards as leaving the 42mm chainline behind makes life a lot easier.

I plugged a lot of different chainstay/component/OLD permutations into CAD and for me the best option is Life cross bend stays, a 47mm chainline, 130mm hub and 130bcd chainset allowing me to run up to a 46t chainring. This also gives interesting options for cranks.

The Surly ultra new hub meets the above specs but only come single sided fixed, however the Halo Fix G seems like a great option...double sided fixed with adjustable chainlines. Goldtec were previously running on 46mm chainline which would work but I haven't been able to find one.

Mapping out tyre/guards/clearance issues

I had to manipulate the chainstays a little then press a couple of dimples for tyre clearance and we're good!

Rad bike! is there a project thread or more details anywhere?

@alialias It's totally flat around Berlin so my thinking was to optimise the mudguard clearance around where the 44mm tyre will sit with street gearing, 74" or so (I also used fixmeup calculator), and then have a second gear ratio for forest riding but that will only be used in summer with different tyres and no guards.

@Eamesy what's the specs on your FTF? The pics on your thread aren't working for me, would love to see more of it!