Search: Posts Made By: Bob Dopolina
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Forum: Road Cycling
06-11-19, 06:28 AM
Replies: 4
Views: 552
Posted By Bob Dopolina

All of the above. Go through the channels.

All of the above. Go through the channels.
Forum: Road Cycling
05-24-19, 07:51 AM
Replies: 36
Views: 2,460
Posted By Bob Dopolina

If others are working wtf would you want to...

If others are working wtf would you want to squeeze in and work?

Slot in and save your jam for later or until something selective happens. Seriously. Why go to the front at the start of the race...
Forum: Road Cycling
03-21-19, 04:41 AM
Replies: 38
Views: 1,587
Posted By Bob Dopolina

Yeah, as I mentioned earlier, lots claim to be...

Yeah, as I mentioned earlier, lots claim to be floating but aren't really floating. If there is no movement possible between the spider and the braking surface then it won't actually float. I can't...
Forum: Road Cycling
03-17-19, 08:29 PM
Replies: 38
Views: 1,587
Posted By Bob Dopolina

Floating is about the pins on the rotor. For most...

Floating is about the pins on the rotor. For most brands they don't move which, more importantly, doesn't let the rotor expand when hot which means it temporarily deforms the rotor (it's no longer...
Forum: Road Cycling
03-17-19, 03:25 PM
Replies: 64
Views: 2,771
Posted By Bob Dopolina

Your expectations would not be met. Cutting...

Your expectations would not be met.

Cutting carbon doesn't produce splinters.
Forum: Road Cycling
03-17-19, 03:23 PM
Replies: 64
Views: 2,771
Posted By Bob Dopolina

The hook beads are part of the layup and are not...

The hook beads are part of the layup and are not machined in afterwards. There are sliders that are part of the mold that create the tire bed.

I do know one disc wheel manufacturer who has their...
Forum: Road Cycling
03-16-19, 11:41 PM
Replies: 64
Views: 2,771
Posted By Bob Dopolina

That's a bit of a leap in logic, is it not? ...

That's a bit of a leap in logic, is it not?

The tire maker claims that the radius on the hook bead is too small (not within ETRTO) and it is cutting the tires. The rim makers says it is within...
Forum: Road Cycling
03-12-19, 09:19 PM
Replies: 38
Views: 1,587
Posted By Bob Dopolina

6-Bolt. CL to 6-Bolt adaptors available.

6-Bolt.

CL to 6-Bolt adaptors available.
Forum: Road Cycling
03-12-19, 09:15 PM
Replies: 38
Views: 1,587
Posted By Bob Dopolina

There are others out there making TRUE floating...

There are others out there making TRUE floating rotors...
Forum: Road Cycling
02-12-19, 08:09 AM
Replies: 18
Views: 894
Posted By Bob Dopolina

It's used in the OE, especially by assemblers. ...

It's used in the OE, especially by assemblers.

Part of my old job was to go to factories and solve compatibility issues between tires and rims. I worked on the tire side of things, at the time. We...
Forum: Road Cycling
02-12-19, 07:58 AM
Replies: 18
Views: 894
Posted By Bob Dopolina

As it used to be my job, I have one on my shelf...

As it used to be my job, I have one on my shelf in my office. It covers every possible kind of rim from wheelbarrows to light aircraft.

Also, it has nothing to do with ISO. It is ETRTO only. ISO...
Forum: Road Cycling
12-22-18, 12:45 AM
Replies: 40
Views: 2,074
Posted By Bob Dopolina

Laying up carbon is a labour intensive operation...

Laying up carbon is a labour intensive operation that can't be done by robots. North American workers are too expensive.

Energy is cheaper. Transportation is cheaper. There are far fewer...
Forum: Road Cycling
12-21-18, 04:07 AM
Replies: 40
Views: 2,074
Posted By Bob Dopolina

That old myth should be shot and buried. If...

That old myth should be shot and buried.

If a vendor is discovered to be making fakes, they would lose the business of the legit company, be sued and word would get around so no other legit...
Forum: Road Cycling
12-01-18, 08:54 PM
Replies: 3
Views: 334
Posted By Bob Dopolina

https://www.bikeforums.net/road-cycling/1161037-al...

https://www.bikeforums.net/road-cycling/1161037-alloy-rim-choice.html
Forum: Road Cycling
11-30-18, 12:16 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

All of the above. A 600g alloy rim seems...

All of the above.

A 600g alloy rim seems excessive. Honestly, I think it's just mediocre extrusion but hey, that's just shade.

At that size of rim, carbon kicks alloy's arse. There's just no...
Forum: Road Cycling
11-28-18, 06:32 AM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

It puts more tread on the ground.

It puts more tread on the ground.
Forum: Road Cycling
11-28-18, 06:16 AM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

The 23 INTERNAL WIDTH rim seems pretty gravel...

The 23 INTERNAL WIDTH rim seems pretty gravel specific to me. Honestly, I'd have a second set of wheels to swap in for the road vs changing tires. It may be cost prohibitive for some but trying to...
Forum: Road Cycling
11-27-18, 10:00 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

Can you buy just the Shimano rims? Link?

Can you buy just the Shimano rims? Link?
Forum: Road Cycling
11-27-18, 09:59 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

What about something like this? Maybe 490g? ...

What about something like this? Maybe 490g?
https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulletin/469x492/gousseau_23_profile_58b331b1a3b795b97f77e257e941ea87991ed75e.png
Forum: Road Cycling
11-27-18, 09:57 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

I love it when a plan comes together.

I love it when a plan comes together.
Forum: Road Cycling
11-27-18, 09:12 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

I'm think a rim with 23 Internal would be about...

I'm think a rim with 23 Internal would be about 27 External. Weight would need to be close to the Archetype with a welded seam to be comparable.

What's the IN WIDTH for the Archetype?
Forum: Road Cycling
11-27-18, 08:04 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

Yeah, They seem to be producing the right specs...

Yeah, They seem to be producing the right specs at a decent price. I like the R 500DB. This seems like a sweet spot for gravel.
Forum: Road Cycling
11-27-18, 06:39 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

I'd have to say that Sun rims weren't on my radar...

I'd have to say that Sun rims weren't on my radar anymore. I'll have a look at that rim.

This rim looks interesting: Inferno 27 (https://sun-ringle.com/product/inferno-27/?cat_id=35)
Forum: Road Cycling
11-27-18, 04:59 PM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

So how wide is too wide in terms of internal...

So how wide is too wide in terms of internal widths? For road or gravel? Would something maybe 22mm or 23mm Internal be too much for gravel?
Forum: Road Cycling
11-27-18, 08:21 AM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

I've not really got much experience with those...

I've not really got much experience with those wheels but I've had other wheels that were similar in that they made that sound. I had a set of Fulcrum R1 that were particularly 'vocal'. I assumed it...
Forum: Road Cycling
11-27-18, 04:24 AM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

I built a crap ton of Mavic rims, back when they...

I built a crap ton of Mavic rims, back when they sold them in the after market, for both 26" and 700c. They were always a go to for me from the GL280 to the CXP rims for crits. Then along came carbon...
Forum: Road Cycling
11-27-18, 02:17 AM
Replies: 53
Views: 1,986
Posted By Bob Dopolina

Alloy Rim of Choice?

For all those either building their own wheels, or selecting parts and having someone else build them for you: What alloy rims are you using? For what applications? And why?
Forum: Road Cycling
11-25-18, 07:45 PM
Replies: 13
Views: 584
Posted By Bob Dopolina

...because it's a bi-lingual country... all...

...because it's a bi-lingual country...

all goods produced for export have labelling and packaging requirements specific to the intended market. SOP.

Canadians have a larger, more prosperous...
Forum: Road Cycling
11-25-18, 05:58 PM
Replies: 32
Views: 1,684
Posted By Bob Dopolina

No, these were extruded. In fact, this vendor...

No, these were extruded. In fact, this vendor buys raw materials and smelts their own alloys, in house. They control every step of production.
Forum: Road Cycling
11-20-18, 07:18 PM
Replies: 32
Views: 1,684
Posted By Bob Dopolina

^^^ This.

^^^ This.
Forum: Road Cycling
11-20-18, 06:02 PM
Replies: 32
Views: 1,684
Posted By Bob Dopolina

I would like to see if this material is truly...

I would like to see if this material is truly viable just out of personal interest. It may have been, years ago, but there have been several improvements to aluminium over the last 20 years that may...
Forum: Road Cycling
11-15-18, 04:12 AM
Replies: 9
Views: 402
Posted By Bob Dopolina

Different pads will work differently on different...

Different pads will work differently on different rims.

Make sense?

Many carbon manufacturers work with specific pad vendors and develop pads that work best with their rims. They adjust...
Forum: Road Cycling
10-15-18, 05:56 AM
Replies: 39
Views: 1,642
Posted By Bob Dopolina

As I said earlier I knew the people who came to...

As I said earlier I knew the people who came to Taiwan from C'Dale to train the welders in Taiwan to make their frames. They may have moved this to China, I don't know.

More likely, they are still...
Forum: Road Cycling
10-12-18, 08:11 AM
Replies: 39
Views: 1,642
Posted By Bob Dopolina

Last I checked C'Dale was made by some one else...

Last I checked C'Dale was made by some one else in Taiwan. I knew some of the people involved in the switch but that was a few years ago. After all that investment it would be a bit of a surprise if...
Forum: Road Cycling
10-10-18, 09:11 PM
Replies: 14
Views: 1,053
Posted By Bob Dopolina

Ah. I guess I missed that part. I scrolled back...

Ah. I guess I missed that part. I scrolled back up and see it now.

If it is 130OLD road to 130 OLD road then it's a crap shoot. A little barrel adjuster magic may be in order.
Forum: Road Cycling
10-10-18, 06:17 PM
Replies: 14
Views: 1,053
Posted By Bob Dopolina

I'm sorry but it's not that simple. Disc...

I'm sorry but it's not that simple.

Disc brake hubs with 135 OLD use 44mm chainline. Road bikes with 130 OLD have 41,5mm chainline.

Shimano specifies 41.5mm chainline for hubs used with road...
Forum: Road Cycling
10-10-18, 06:09 AM
Replies: 14
Views: 1,053
Posted By Bob Dopolina

The chainline on the hubs is different which...

The chainline on the hubs is different which means the der will need adjustment each time.

Adjusting brake pads is sop.
Forum: Road Cycling
10-09-18, 11:59 PM
Replies: 14
Views: 1,053
Posted By Bob Dopolina

^^^ This If you are buying complete wheels...

^^^ This

If you are buying complete wheels it will be an issue. If you want to build wheels you can use a hub designed specifically for these bikes.
Forum: Road Cycling
10-02-18, 07:51 PM
Replies: 88
Views: 3,931
Posted By Bob Dopolina

I wasn't referencing these exact products. I know...

I wasn't referencing these exact products. I know what frames built to this spec cost. I know what rims, spokes, hubs and seatposts cost. That was my point.

Apparently, this is not a package for...
Forum: Road Cycling
10-02-18, 06:02 PM
Replies: 88
Views: 3,931
Posted By Bob Dopolina

IMPOSSIBLE! I know what manufacturing costs...

IMPOSSIBLE!

I know what manufacturing costs are on those products. There is no way in HECK that you will ever receive your order.

This is outright fraud.
Forum: Road Cycling
09-28-18, 09:48 PM
Replies: 37
Views: 1,403
Posted By Bob Dopolina

Actually, my understanding is that US...

Actually, my understanding is that US manufacturing is at an all time high. The problem is the jobs have been taken by robots.
Forum: Road Cycling
09-28-18, 09:44 PM
Replies: 37
Views: 1,403
Posted By Bob Dopolina

We couldn't make the products we make in the US....

We couldn't make the products we make in the US. That's the whole point. If we did our costs would price them out of the market.
Forum: Road Cycling
09-28-18, 06:35 AM
Replies: 37
Views: 1,403
Posted By Bob Dopolina

I don't think you understand how trade works....

I don't think you understand how trade works. Deficits are not always a bad thing.

Increased tariffs won't force anyone to the table as it isn't paid by the county of origin, it's paid by the US...
Forum: Road Cycling
09-22-18, 05:10 AM
Replies: 11
Views: 687
Posted By Bob Dopolina

It's just the rotors themselves. Have a look at...

It's just the rotors themselves. Have a look at where the braking surface joins the spider. It needs to be pinned but with the ability to expand around the pin.
Forum: Road Cycling
09-12-18, 06:37 PM
Replies: 29
Views: 658
Posted By Bob Dopolina

check stuff for sale on this forum...

check stuff for sale on this forum...
Forum: Road Cycling
09-11-18, 08:26 PM
Replies: 88
Views: 3,931
Posted By Bob Dopolina

A few things to add: The original link is...

A few things to add:

The original link is to an ASSEMBLY factory in China. They don't make anything. All the goods they sell including the motorcycle covers and cheerleader outfits are made by...
Forum: Road Cycling
09-09-18, 05:50 PM
Replies: 11
Views: 687
Posted By Bob Dopolina

What you experienced is typical of non-floating...

What you experienced is typical of non-floating rotors.

Under those kinds of braking forces, the braking surface heats up and expands. Since it is attached to the "spider" or arms in a way that...
Forum: Road Cycling
08-27-18, 03:23 AM
Replies: 26
Views: 911
Posted By Bob Dopolina

USPS doesn't inspect packages. Customs does. But...

USPS doesn't inspect packages. Customs does. But they don't inspect ALL packages. They inspect a percentage as it would be impossible to inspect every package. Inspection means delays.

Tariffs are...
Forum: Road Cycling
08-23-18, 11:24 PM
Replies: 30
Views: 1,166
Posted By Bob Dopolina

I live in Taiwan and help start ups, well, start...

I live in Taiwan and help start ups, well, start up.

We design, source, run tooling and manage logistics for OEM and ODM customers as well as some of our our branded goods. If you'd like to talk...
Forum: Road Cycling
08-23-18, 11:17 PM
Replies: 26
Views: 911
Posted By Bob Dopolina

This is pretty typical regardless of what...

This is pretty typical regardless of what shipping method you use. Customs inspect packages on a random basis as well as looking at anything suspicious. Country of origin is a factor.

We are...
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