Author Topic: N+1 = Spa Audax Mono  (Read 16522 times)

arabella

  • عربللا
  • onwendeð wyrda gesceaft weoruld under heofonum
Re: N+1 = Spa Audax Mono
« Reply #75 on: 25 March, 2024, 08:01:31 pm »
Now landed and built
(there is a photo but it fails to appear)
Any fool can admire a mountain.  It takes real discernment to appreciate the fens.

Re: N+1 = Spa Audax Mono
« Reply #76 on: 25 March, 2024, 08:13:54 pm »
Hope you enjoy it Arabella.

I've set mine up single speed now - I still love fixed: I just want to try single speed for a while to see what it's like.

Re: N+1 = Spa Audax Mono
« Reply #77 on: 28 March, 2024, 04:53:05 pm »
@trundle

What chainset are you running on your mono?

My mono came with Spa's RD2 which has the chainring bolted to the inner spider to achieve adequate chainline. Your chainring appears to be bolted to the outside of the spider so maybe it isn't an RD2.

I'd like to change my chainset because I can't get consistent chain tension, which I've isolated to the chainset not being symmetrical.

Re: N+1 = Spa Audax Mono
« Reply #78 on: 28 March, 2024, 05:16:46 pm »
@Howdee

It's TD2 with a 42 tooth chainring at 110mm BCD.

I did try the the chainwheel on the inside. It improved the chainline, but it sounded horrible. Like it wanted to unship.

The chainwheel is back on the outside, which looks nicer and a liberal coat of wax lube makes it run silently.

Re: N+1 = Spa Audax Mono
« Reply #79 on: 29 March, 2024, 09:52:21 pm »
Arabella, How was the maiden voyage?

rogerzilla

  • When n+1 gets out of hand
Re: N+1 = Spa Audax Mono
« Reply #80 on: 30 March, 2024, 05:06:18 pm »
@trundle

What chainset are you running on your mono?

My mono came with Spa's RD2 which has the chainring bolted to the inner spider to achieve adequate chainline. Your chainring appears to be bolted to the outside of the spider so maybe it isn't an RD2.

I'd like to change my chainset because I can't get consistent chain tension, which I've isolated to the chainset not being symmetrical.
The RD2 is an unbranded Sugino Messenger, isn't it?  I built a fixie with one of those and it is pleasantly concentric with a TA track ring.  Chainline is difficult because it's really a road crank, but it lines up with a 103mm BB, a Miche track hub, and a thin spacer under the RH cup.
Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

Re: N+1 = Spa Audax Mono
« Reply #81 on: 30 March, 2024, 08:40:35 pm »
The RD2 is an unbranded Sugino Messenger, isn't it?  I built a fixie with one of those and it is pleasantly concentric with a TA track ring.  Chainline is difficult because it's really a road crank, but it lines up with a 103mm BB, a Miche track hub, and a thin spacer under the RH cup.

I believe Spa's RD2 uses the same pattern as the Sugino Messenger. Thanks for that info. I have a spare 103mm BB which I will try with the chainring moved to the outside.

rogerzilla

  • When n+1 gets out of hand
Re: N+1 = Spa Audax Mono
« Reply #82 on: 31 March, 2024, 07:47:55 am »
What rear hub are you using?  The Miche has a chainline of about 46mm, I think, with a typical sprocket.
Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

Re: N+1 = Spa Audax Mono
« Reply #83 on: 31 March, 2024, 08:28:57 am »
Hub is a Sturmey Archer HBT30 Fixed/Free

rogerzilla

  • When n+1 gets out of hand
Re: N+1 = Spa Audax Mono
« Reply #84 on: 31 March, 2024, 08:47:26 am »
SJSC claim the chainline of that is 42mm (SJSC are not always accurate in their answers).  I assume that includes the sprocket but there is some variance in sprockets when it comes to chainline.  Anyway, frames are rarely straight so you need to check chainline with a straight edge instead and go from there. 

I think I respaced the Miche hubs to get a 45mm chainline.  I did the same with my vintage Campag Record track hub (Campag "track" chainline is 42.5mm).  You may have to do the same, since achieving a 42mm chainline is not possible with road-derived cranks and the ring on the outside.  Obviously the wheel needs redishing if it's already been built.
Hard work sometimes pays off in the end, but laziness ALWAYS pays off NOW.

Re: N+1 = Spa Audax Mono
« Reply #85 on: 07 May, 2024, 11:34:54 am »
I've been experimenting with single speed, because, why not: But I really miss fixed - so it's flipped back to fixed, and the flats replaced with SPD pedals.

I'll try again when I have the time for long distance: I expect I'll enjoy single speed on some long rides.

Every time I lift the mono, it feels light as a feather: My geared bikes are 2 and 3 kg's heavier.

Re: N+1 = Spa Audax Mono
« Reply #86 on: 17 May, 2024, 12:29:34 pm »
A 20 mile trundle around some quiet lanes of London, using the Hammerton ferry to cross the Thames at Twickenham. A ferry turns the smallest journey into an adventure.



I do love fixed gear trundling...


JonB

  • Granny Ring ... Yes Please!
Re: N+1 = Spa Audax Mono
« Reply #87 on: 17 May, 2024, 03:51:29 pm »
 :) :thumbsup:

Re: N+1 = Spa Audax Mono
« Reply #88 on: 07 June, 2024, 02:18:46 pm »
A lovely evening ride to the Royal Albert Hall and a ride around the Serpentine at the golden hour.




Re: N+1 = Spa Audax Mono
« Reply #89 on: Yesterday at 09:53:08 am »
I can only do local rides for the time being, but it's been fun looking into places I would normally pass and taking piccies.



I wrapped my first bar tape, to replace one side that was ripped. I did an okay job - it's not as consistently wound as a bike mechanic: But it's comfy, isn't coming undone, and looks okay.