A A A A
Belt drive fixed
 
LinkBack Thread Tools Search this Thread
Old 25th February 2010   #301
TheBrick(Tommy)
 
TheBrick(Tommy)'s Avatar
www.lfgss.com/shop
  quote   reply
Old 25th February 2010   #302
NurseHollidaydonor
 
NurseHolliday's Avatar
Quote:
Originally Posted by Velocio View Post
I'm doing that just to acquire the stuff. You know, I can't find a single retailer in Europe that appears to list this stuff on their website and will ship it immediately if I were to place an order.

Phil Wood should let me be their UK distributor, as should Gates. I'd rock at it... easiest thing in the world to sell quality components that have a market already and lots of people willing to part with cash for it.
If you did that then you wouldn't be able to complain that this place doesn't make you any money.
  quote   reply
Old 25th February 2010   #303
Velociodonor
 
Velocio's Avatar
Of course I would. Can you imagine the cash flow I'd need to get started? I'd need insurance, company registration, storage facility, blah blah blah. It would be great though, at least the potential to make money would be there. More to the point, I'd be dead chuffed to be able to sell quality items that are hard to come by, as a connoisseur of bike stuff filling that clear gap in the market just helps people like me who like to have such great stuff... that would make me happy.
  quote   reply
Old 25th February 2010   #304
jv
why dont they make some kind of half link thing for belts instead of all this fucking around with frames?
  quote   reply
Old 25th February 2010   #305
andy.wdonor
 
andy.w's Avatar
Quote:
Originally Posted by mmccarthy View Post
Sure it will, it's a belt.
tighten it a notch. Just like losing weight innit.
  quote   reply
Old 25th February 2010   #306
Velociodonor
 
Velocio's Avatar
Quote:
Originally Posted by jv View Post
why dont they make some kind of half link thing for belts instead of all this fucking around with frames?
Compromises the integrity of the belt.
  quote   reply
Old 25th February 2010   #307
Arducius
 
Arducius's Avatar
Surely so long as the belt connection can out-last the belt, all is well? I think i read belts are supposed to last about 3(?) years, so as long as the connection is more durable than that, you're away!
  quote   reply
Old 25th February 2010   #308
kerley
Quote:
Originally Posted by Arducius View Post
Surely so long as the belt connection can out-last the belt, all is well? I think i read belts are supposed to last about 3(?) years, so as long as the connection is more durable than that, you're away!
and it would make changes to the length possible assuming you could cut the belt if putting on smaller ring or cog.

Might need the whole belt thing to catch on a bit more yet before anyone bothers developing it but as you say it would bring the option of belt drive to any frame which is a major plus/selling point
  quote   reply
Old 25th February 2010   #309
31tumdonor
 
31tum's Avatar
wouldn't think you could cut the belt then re-join anyway.
you'd have to put a smaller belt on
  quote   reply
Old 25th February 2010   #310
Mrlemon
 
Mrlemon's Avatar
Quote:
Originally Posted by jv View Post
why dont they make some kind of half link thing for belts instead of all this fucking around with frames?
Quote:
Originally Posted by Arducius View Post
Surely so long as the belt connection can out-last the belt, all is well? I think i read belts are supposed to last about 3(?) years, so as long as the connection is more durable than that, you're away!
Do you not think the people currently developing belt drives havent thought of this? obviously it would be a HELLA load cheaper to have a belt with a connection, rather than chopping up frames all over the place, but as V pointed out, it would compromise the integrity of the belt. if it WAS possible, i reckon it would have been done by now.
  quote   reply
Old 25th February 2010   #311
mmccarthy
 
mmccarthy's Avatar
Quote:
Originally Posted by andy.w View Post
tighten it a notch. Just like losing weight innit.
I wear a chain around my waist...
  quote   reply
Old 25th February 2010   #312
Velociodonor
 
Velocio's Avatar
Yup, you can't just put a belt buckle on these things... the threads of the carbon belt overlap and go around the full length of the belt, think of a whole spindle of cotton wrapped between two poles so the single thread goes back and forth hundreds of times... if you added a coupling you'd weaken the entire structure and focus all of the force onto a single point. Without the coupling you'd have to break a significant number of the threads to weaken it to a point where it would fail, it's much much stronger.
  quote   reply
Old 25th February 2010   #313
diable
Quote:
Originally Posted by andy.w View Post
tighten it a notch. Just like losing weight innit.
Quote:
Originally Posted by mmccarthy View Post
I wear a chain around my waist...
not only your waist from what I've heard ;p

  quote   reply
Old 25th February 2010   #314
Smallfurrydonor
 
Smallfurry's Avatar
Quote:
Originally Posted by Velocio View Post
Of course I would. Can you imagine the cash flow I'd need to get started? I'd need insurance, company registration, storage facility, blah blah blah. It would be great though, at least the potential to make money would be there. More to the point, I'd be dead chuffed to be able to sell quality items that are hard to come by, as a connoisseur of bike stuff filling that clear gap in the market just helps people like me who like to have such great stuff... that would make me happy.
I am often surprised at the amount of cycling gear that is pretty much only availible through German internet sites.

There's a fair amount of high tech weight weenie stuff, and some pretty mind blowing internal gearing mechanisms.

I have often wondered what the market for this stuff is like in the UK?
Do th britih bike nerds just order from Germay?
Quote:
Originally Posted by jv View Post
why dont they make some kind of half link thing for belts instead of all this fucking around with frames?
The Gates carbon drive is so called because the uni directional carbon fibres running along the belt. I imagine a large part of the systems strength comes from the bel being a one piece unit.

ED: too slow.
  quote   reply
Old 25th February 2010   #315
Velociodonor
 
Velocio's Avatar
Yup, I order my bike porn components from starbike usually.
  quote   reply
Old 25th February 2010   #316
TheBrick(Tommy)
 
TheBrick(Tommy)'s Avatar
I've found German sites have a better selection of cassettes too, also roses sell individual cogs if you want to customize a cassette.
  quote   reply
Old 25th February 2010   #317
kerley
Quote:
Originally Posted by Velocio View Post
Yup, you can't just put a belt buckle on these things... the threads of the carbon belt overlap and go around the full length of the belt, think of a whole spindle of cotton wrapped between two poles so the single thread goes back and forth hundreds of times... if you added a coupling you'd weaken the entire structure and focus all of the force onto a single point. Without the coupling you'd have to break a significant number of the threads to weaken it to a point where it would fail, it's much much stronger.
Should never say can't, there is probably a solution somehwere but no-one would be willing to spend time or money looking into it. The whole belt structure would need to change but it wouldn't be impossible, would it?

Maybe loads of smaller bits of belt formed into links of some sort :-)
  quote   reply
Old 25th February 2010   #318
31tumdonor
 
31tum's Avatar
eventually there will be belts of loads of slightly different sizes as the market grows
  quote   reply
Old 25th February 2010   #319
mmccarthy
 
mmccarthy's Avatar
Quote:
Originally Posted by 31trum View Post
eventually there will be belts of loads of slightly different sizes as the market stretches
Fixed.
  quote   reply
Old 25th February 2010   #320
Velociodonor
 
Velocio's Avatar
Well you could double the length of the fibres and wrap them around two titanium pins, then fold the whole thing and then connect the pins in a half link and that way it would be structurally intact... but you've just made the cost much greater than it was, and you still have the issue that the strength is much reduced as the fibres would now be tightly bent around those pins. Oh, and anything sticking out the side would now be incompatible with everything made to date, so the belt would jump from the beltring and sprocket.

Or you could just gate your rear triangle.
  quote   reply
Old 25th February 2010   #321
Smallfurrydonor
 
Smallfurry's Avatar
Quote:
Originally Posted by Velocio View Post
Or you could just gate your rear triangle.
+1
simples
http://www.lfgss.com/post1148623-147.html
  quote   reply
Old 25th February 2010   #322
edscoble
 
edscoble's Avatar
I wonder how possible it is to gate a Brooklyn Machine Work, that'd be the icing on the cake.
  quote   reply
Old 25th February 2010   #323
MacB
http://www.sandsmachine.com/fbplist.htm

I was directed to the above site via EcoVelo to find various companies that do frame couplings. Retrofitting is a case of installing a S&S coupling, as per a travel frame, but reduced in size and into the driveside seatstay. In some ways I prefer this idea to having the opening at the drops, not cheap though.
  quote   reply
Old 25th February 2010   #324
31tumdonor
 
31tum's Avatar
far prefer this idea
much cleaner and would be a lot cheaper
http://www.cycles-for-heroes.com/sit...-prototype.jpg
  quote   reply
Old 25th February 2010   #325
edscoble
 
edscoble's Avatar
Quote:
Originally Posted by MacB View Post
http://www.sandsmachine.com/fbplist.htm

I was directed to the above site via EcoVelo to find various companies that do frame couplings. Retrofitting is a case of installing a S&S coupling, as per a travel frame, but reduced in size and into the driveside seatstay. In some ways I prefer this idea to having the opening at the drops, not cheap though.
that price is for the two S&S coupling on the frame, not the seatstay.
  quote   reply
Old 25th February 2010   #326
MacB
maybe it's not readily available as this guy seems to have built his own frame:-

http://www.ecovelo.info/2009/12/07/g...rive-commuter/

I think it looks ok
  quote   reply
Old 25th February 2010   #327
Velociodonor
 
Velocio's Avatar
I have one on my bike MacB, they're available.
  quote   reply
Old 26th February 2010   #328
lucas
 
lucas's Avatar
Quote:
Originally Posted by Arducius View Post
What made you change your mind?
Since I needed to replace my chain on the mountain bike.
  quote   reply
Old 27th February 2010   #329
Smallfurrydonor
 
Smallfurry's Avatar
Some pic's of my belt drive.

If things thaw out some more, I should be able to give it a better test.
Attached Thumbnails
dsc_0076.jpg   dsc_0078.jpg  
  quote   reply
Old 1st March 2010   #330
Velociodonor
 
Velocio's Avatar
The Gates price list from http://www.g-boxx.com/
Attached Files
File Type: pdf _Gates CD pricelist VK 091201.pdf (17.3 KB)
  quote   reply
Old 1st March 2010   #331
Dylan
 
Dylan's Avatar
prices are not entirely outrageous, which is a suprise!
  quote   reply
Old 1st March 2010   #332
Velociodonor
 
Velocio's Avatar
Yeah, they're a little higher than some good quality bits for a trad system, but it doesn't appear to be gouging. Quite refreshing really.
  quote   reply
Old 1st March 2010   #333
rusty
 
rusty's Avatar
Are the cogs listed as 'thread on' able to work as fixed cogs with a lockring?
  quote   reply
Old 1st March 2010   #334
Velociodonor
 
Velocio's Avatar
Quote:
Originally Posted by rusty View Post
Are the cogs listed as 'thread on' able to work as fixed cogs with a lockring?
Yes, that's exactly what they are... fixed cogs :)
  quote   reply
Old 1st March 2010   #335
Dylan
 
Dylan's Avatar
what pitch is a belt drive ? 1/2 same as regular chains ? reason im asking is trying to work out what parts i'd need for mine for the correct gearing and belt length

edit]

no worries d/l the calculator from Gates site is quite useful.

Last edited by Dylan; 1st March 2010 at 23:51.
  quote   reply
Old 2nd March 2010   #336
Dylan
 
Dylan's Avatar
ok so just worked it out, using this calculator and this price sheet Velocio kindly provided.

55t beltring
22t sprocket
113mm belt

center to center distance (middle of dropouts) is 410mm, min 395mm, max 425mm

it all came to 200 (converting euros using google), which is without postage or the cost of splitting the rear triangle.

if i had the money i would.

Last edited by Dylan; 2nd March 2010 at 00:22.
  quote   reply
Old 2nd March 2010   #337
Dylan
 
Dylan's Avatar
temporary fix probably yes, but not as a permanent solution.
  quote   reply
Old 2nd March 2010   #338
bmxconan
 
bmxconan's Avatar
Quote:
Originally Posted by Velocio View Post
Well you could double the length of the fibres and wrap them around two titanium pins, then fold the whole thing and then connect the pins in a half link and that way it would be structurally intact... but you've just made the cost much greater than it was, and you still have the issue that the strength is much reduced as the fibres would now be tightly bent around those pins. Oh, and anything sticking out the side would now be incompatible with everything made to date, so the belt would jump from the beltring and sprocket.

Or you could just gate your rear triangle.
I kinda wonder if anyones tried one of these



It's basically an emergency one size fits all v belt. Addmittedly they're not very pretty. I use one on my 1 h.p. lathe at work. It does slip under heavy load, but I do think it, or a similar concept could be made to work.
  quote   reply
Old 2nd March 2010   #339
Smallfurrydonor
 
Smallfurry's Avatar
Quote:
Originally Posted by Velocio View Post
The Gates price list from http://www.g-boxx.com/
Brilliant.

I have plenty of drop out to go from 46:24 to 46:25, and 60 euros seems a fair price for the flexibility. Just need to check tyre clearance (and wether I need to gear down, I guess).

An extra Alfine-hubed rear wheel, to add the possibility of occasional gears, with shifter, brake disc (and adaptor), spokes etc. Looks to be around 350.

Think I'll wait with that one.

Last edited by Smallfurry; 2nd March 2010 at 08:57.
  quote   reply
Old 25th March 2010   #340
vlo libre


http://schindelhauerbikes.com/#/en/models/viktor/

Quote:
Originally Posted by Schindelhauer Bikes
The geometric shapes of our bikes have their roots in the track sport and in the world of cycle curriers which speed for miles through bumper-to-bumper traffic. We carefully modified the shape of our bikes so as to combine comfort and agility. The outcome is an athletic upright posture that guarantees you to fully keep track on the road.
  quote   reply
Old 25th March 2010   #341
wooodrow
 
wooodrow's Avatar
wesbite design fail, I can't see that white bike on the white background!
  quote   reply
Old 25th March 2010   #342
Smallfurrydonor
 
Smallfurry's Avatar
Athletic upright posture????
  quote   reply
Old 26th March 2010   #343
Arducius
 
Arducius's Avatar
Quote:
Originally Posted by wooodrow View Post
wesbite design fail, I can't see that white bike on the white background!
What bike?
  quote   reply
Old 26th March 2010   #344
mmccarthy
 
mmccarthy's Avatar
Quote:
Originally Posted by vlo libre View Post
Obligatory stretched belt comment...
  quote   reply
Old 26th March 2010   #345
Smallfurrydonor
 
Smallfurry's Avatar
Quote:
Originally Posted by mmccarthy View Post
Obligatory stretched belt comment...
Obligatory face palm, to the forum 'sexist car lover' ;)
  quote   reply
Old 26th March 2010   #346
mmccarthy
 
mmccarthy's Avatar
*Note to self: They don't think you're racist, be more racist.*
  quote   reply
Old 26th March 2010   #347
31tumdonor
 
31tum's Avatar
slack fork angle
  quote   reply
Old 26th March 2010   #348
Smallfurrydonor
 
Smallfurry's Avatar
Four candles?
  quote   reply
Old 26th March 2010   #349
vlo libre
72 deg ain't that slack compared to a plug (70)
  quote   reply
Old 26th March 2010   #350
hael
 
hael's Avatar
no fork andles!
  quote   reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

LinkBacks (?)
LinkBack to this Thread: http://www.lfgss.com/thread10338.html


Similar Threads
Thread Thread Starter Forum Replies Last Post
Slipping cranks, drive chain slip? Slack Mechanics & Fixin' 137 4th July 2013 17:35
Schlumpf Speed Drive vinylvillain Bikes & Bits 8 7th September 2008 15:30
Left side drive fatbloke Mechanics & Fixin' 26 8th August 2008 13:59
National drive like a c*nt day! BigFatAl General 28 14th June 2008 10:36
Quick drive question Slack Bikes & Bits 30 29th November 2007 17:54

All times are GMT. The time now is 13:33.
Creative Commons License, BY-SA v2.0
no new posts