Belt Drive vs Chain Drive Technologies

[nathrix]

You ass a is not an acceptable answer

 

Let me say this...it's not a Spot

[Thug]

Very nice Nathrix.

 

What bike are you fitting the belt to?

[nathrix]

Very nice Nathrix.

 

What bike are you fitting the belt to?

 

Hairy asked the exact same question

[nathrix]

Gates Belt Drive Responds to Aramid Rumors

 

http://www.bikerumor...-aramid-rumors/

 

Being in the rumor business here, occasionally we stir up a few bees nests. Some of hearsay surrounding the Continental belt drive system introduced at Eurobike did just that, which included a rumor that Gates Carbon Belt Drive was considering Aramid to replace the carbon. We’ve heard from several folks with hands on experience that if handled improperly -mainly if its crimped or folded to severely- the Gates system can weaken and snap. We haven’t experienced this since our only test bikes with the Gates system have come prebuilt. That said, Gates has replied that they are absolutely not considering Aramid. Here are the combined comments from Todd Sellden, director of Gates Carbon Drive Systems, and their PR agent:

 

It is incorrect to say that Gates is considering using Aramid.

 

Gates used Aramid 30 years ago in a similar industrial belt. A decade ago Gates phased out Aramid and introduced its patented carbon fiber tensile cord technology for industrial belts because it provides superior power density. The years of R&D that Gates has with carbon tensile cord in industrial belt applications made carbon fiber the most sensible and durable material for bicycling, which is why Gates made carbon fiber the backbone of the Carbon Drive. Unlike industrial belts that are being marketed for bicycling applications, Gates Carbon Drive is the result of years of R&D on a bike-market-specific application and it is truly the premium product in the bicycle marketplace—and the only system designed from the ground up with bicycling in mind.

 

Regarding tooth size: Gates experimented with various tooth profiles (from 8mm to 14mm) before the launch of Carbon Drive. Gates found the larger teeth required larger sprocket sizes that are heavy and impractical for bicycling applications, where weight is a major consideration. The 11mm tooth size on Carbon Drive was chosen specifically because Gates found it to be the best combination of light weight and strength.

[Hairy]

certainly not the raleigh nathrix?

[nathrix]

certainly not the raleigh nathrix?

 

Nope

[Wyatt Earp]

certainly not the raleigh nathrix?

The Raleigh has it's own system from gates.

Sawyer.

[BogusOne]

Any new developments here Nathrix? Any pics of your build in progress? Very interested to know how it performs.

[nathrix]

Any new developments here Nathrix? Any pics of your build in progress? Very interested to know how it performs.

 

Will update as soon as I get the bike. Got a mail this morning that she should arrive in slaapstad by tomorrow and then she will be couriered up to joburg. So if all goes well I should have her by next week some time to start with the installation of the belt drive.

[Dirtbreath]

Is the Ibis Tranny able to split the rear triangle?

[Guest Travis.]

Will be very interesting to determine for myself how long the belt drive last and the type of rides it works well/or not compared to chain drives. If it's crap it's easy enough to convert the setup back to chain drive .

 

Gates CenterTrack

• 46 tooth bicycle pulley front 4 bolt
  
• 26 tooth bicycle pulley rear
  
• 120 tooth bicycle belt
  
• krikit tension gauge
  
• strap wrench tool
  

This combination will give me the exact ratio as a 32t/18t chain set up.

 

I didn't choose 32t-36t/17t-16t chain setup as my poor little legs are not strong enough and I'm happy/comfortable cruising along with 32t/18t ratio.

 

Where'd you order from and mind sending me a PM (or post here if you don't care) for costs?

[Wyatt Earp]

I don't think the belt drive stuff will be the most ideal solution on long rides.

However it is pretty good.

Will give more feedback as I go along.

[Guest Travis.]

I don't think the belt drive stuff will be the most ideal solution on long rides.

However it is pretty good.

Will give more feedback as I go along.

 

Anton, throw me a PM with some +- costing there please.

[RexFuzzle]

I have been wandering about this for a while.

The whole carbon system looks cool and all, but I was thinking of a more generic approach with timing belts from card. There are various standards with various sizes and all the strength etc are given. The only disadvantage if these is that the cogs have no place for stones etc to go if they get caught in there where the carbon system does not crush stuff.

 

With regard to splitting the frame. I have decided that the simplest would be to get one with back strut cross section which is as circular as possible and taking a hack saw to it and making an insert that is then bolted in place when the belt in in.

 

The last problem is the cogs then and I still want to do a quick calc to see if I can 3D print it, otherwise use up some of my points on the CNC.

 

On a side note, there used to be emergency fan belts that could be split and joined, only problem is that they were friction belts. If there was enough interest I think somebody could adapt it to be similar to a timing belt setup.

[Flowta]

Anyone tried S & S couplers?

http://en.wikipedia.org/wiki/Bicycle_Torque_Coupling

 

http://upload.wikimedia.org/wikipedia/en/thumb/4/42/S_and_S_coupling.jpg/300px-S_and_S_coupling.jpg

[Shebeen]

I don't think the belt drive stuff will be the most ideal solution on long rides.

However it is pretty good.

Will give more feedback as I go along.

is the tour divide not a long enough ride(at 4800km)?! was won by a belt drive/rohloff this year

 

I think this could be the touring option of choice in time. all about the low maintenance