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Search: Posts Made By: rustymongrel
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Replies: 30
Views: 16,673
Posted By rustymongrel

Heu sorry for the late response but you can swap...

Heu sorry for the late response but you can swap the bearings for ones that are 12mm ID with the same OD as the Zipp bearings. Can’t recall the bearing number of the top of my head. The width is...
Replies: 30
Views: 16,673
Posted By rustymongrel

yup, my email address is a few posts up.

yup, my email address is a few posts up.
Replies: 30
Views: 16,673
Posted By rustymongrel

Yes, shoot me an email and I’ll give you the...

Yes, shoot me an email and I’ll give you the details.

My e-mail address is in a post above.
Replies: 30
Views: 16,673
Posted By rustymongrel

Hey, so I’ve gotten a few emails from folks...

Hey, so I’ve gotten a few emails from folks finding this thread and at least once it appeared that my replies were going to the persons spam folder and we failed to connect. If you have contacted me...
Replies: 54
Views: 15,798
Posted By rustymongrel

Yup that’s the company. They did the frame only...

Yup that’s the company. They did the frame only though, fork and other components came from other companies.
Replies: 30
Views: 16,673
Posted By rustymongrel

Hey, yeah I have one left from the last batch I...

Hey, yeah I have one left from the last batch I made.

email me at senkofabrication at gmail.com
Replies: 30
Views: 16,673
Posted By rustymongrel

Hamilton? For some reason I thought you were in...

Hamilton? For some reason I thought you were in Edmonton.

been a number of takers on Facebook and through Instagram. I’m going have to pick up some more stainless bar.
Replies: 30
Views: 16,673
Posted By rustymongrel

This is a rear wheel so never in contact with...

This is a rear wheel so never in contact with carbon. On the NDS you could do the threads short but on the other side the threads are needed for the lock nut to preload the bearings.
Replies: 30
Views: 16,673
Posted By rustymongrel

Zipp 182 Track Axle

The subject of the scarcity of track axles for older Zipp 900 discs has come up a few times and I mentioned recently that I was making one for a friend since I have a machine shop and an original...
Replies: 54
Views: 15,798
Posted By rustymongrel

Oh for sure, but when you have a company doing...

Oh for sure, but when you have a company doing the design that has long standing relationships with multiple manufacturers with extensive bike building experience (including one that has built "super...
Replies: 54
Views: 15,798
Posted By rustymongrel

They did not make the Cervelos, no idea if they...

They did not make the Cervelos, no idea if they made UKSI bikes though.

Like I said earlier in the thread the company that made the T5GB is not associated with cycling in any way.
Replies: 5,940
Views: 774,912
Posted By rustymongrel

I can make 900 track axles. I have an original...

I can make 900 track axles. I have an original one on my disc to work off of and a machine shop in my garage. I'm supposed to do one for a friend soon... making more than one at a time is certainly...
Replies: 14
Views: 2,071
Posted By rustymongrel

I don’t think continentals have a date on them,...

I don’t think continentals have a date on them, but I know some brands do, veloflex for example have the date printed on the base tape.

That said as long as the rubber of the tire is supple and...
Replies: 54
Views: 15,798
Posted By rustymongrel

In that type of design the metal bar is just to...

In that type of design the metal bar is just to tension the headset. The structural role the steerer tube plays in a conventional set up is replaced by the external “steerer tube” in front of the...
Replies: 54
Views: 15,798
Posted By rustymongrel

As far as I’m aware not a single one was sold to...

As far as I’m aware not a single one was sold to the public. I think that had more to do with British cycling not wanting them sold than anything else.

I was was told to tell anyone that asked...
Replies: 54
Views: 15,798
Posted By rustymongrel

Well I mean there was a bit more work on Cervélos...

Well I mean there was a bit more work on Cervélos end than that but yeah. The British manufacturer thing was some sort of caveat with the money British cycling gets from the lottery if I recall...
Replies: 14
Views: 2,071
Posted By rustymongrel

They are most definitely glued. No track racer I...

They are most definitely glued. No track racer I know trusts tape. Back in the day trackies used shellac too.
Replies: 54
Views: 15,798
Posted By rustymongrel

The T5 is not one bike but two. Sprinters rode a...

The T5 is not one bike but two. Sprinters rode a frame that had different main tube shapes and weighed significantly more. This was to increase stiffness at a minor cost to aerodynamics. A T5 sprint...
Replies: 15
Views: 2,540
Posted By rustymongrel

Makes sense, I grew up doing swimming and...

Makes sense, I grew up doing swimming and continued at that through university. During university we did testing twice a year as part of our gym training: body composition, vertical jump, 60m running...
Replies: 15
Views: 2,540
Posted By rustymongrel

Jumping and short sprints are an excellent test...

Jumping and short sprints are an excellent test of fast twitch potential.

I've never been good at either, even with training. Most people take me for a "sprinter" when they see me at the track...
Replies: 2,806
Views: 522,309
Posted By rustymongrel

That's awesome! I wanted to see some racing...

That's awesome!

I wanted to see some racing when I was in Japan in 2015 but without any Japanese friends was totally out of luck with schedules etc.
Replies: 22
Views: 5,192
Posted By rustymongrel

Yeah I wasn't measuring between the joints. My...

Yeah I wasn't measuring between the joints. My shoulders are about 43-44cm measured that way (I'm 6'3).
Replies: 22
Views: 5,192
Posted By rustymongrel

My shoulders are 48cm wide and I use 37cm bars...

My shoulders are 48cm wide and I use 37cm bars for enduro and 40 or 42cm bars on the road depending on application (racing, training, CX).

I have never felt restricted in any way.
Replies: 53
Views: 9,745
Posted By rustymongrel

I've heard that top Japanese Keirin racers have...

I've heard that top Japanese Keirin racers have frames with different geometry for racing in the wet. And bikes with different tubing spec for early season and late season racing.

Not sure if...
Replies: 13
Views: 4,378
Posted By rustymongrel

I looked into this, the 900 has 24mm OD bearing...

I looked into this, the 900 has 24mm OD bearing seats and unfortunately 17x24 bearings don't seem to exist (the Super 9 uses 17x26 and 17x30 bearings).

My offer to machine a new axle for you...
Replies: 13
Views: 4,378
Posted By rustymongrel

It's larger, 17mm I'm pretty sure.

It's larger, 17mm I'm pretty sure.
Replies: 13
Views: 4,378
Posted By rustymongrel

The Miche bits do require extra spacers and it's...

The Miche bits do require extra spacers and it's not all that perfect as the NDS cone is difficult to adjust being so far inboard.

One could make a new axle that has a similar preload adjustment...
Replies: 13
Views: 4,378
Posted By rustymongrel

I measured mine with my mic. NDS bearing surface...

I measured mine with my mic. NDS bearing surface was 0.5894" and DS was 0.5891"... so 14.95~14.97mm

When the axle is slipped through the bearings there is noticeable play. Once the DS locknut is...
Replies: 13
Views: 4,378
Posted By rustymongrel

I have both a 900 and a micrometer! It might...

I have both a 900 and a micrometer!

It might matter what generation hub you have, so I'd suggest posting pictures.
Replies: 40
Views: 10,545
Posted By rustymongrel

At the same cadence a shorter crank requires...

At the same cadence a shorter crank requires lower foot speed and higher torque. Longer crank is the opposite, higher foot speed and lower peak torque

In reality someone running longer cranks is...
Replies: 2,806
Views: 522,309
Posted By rustymongrel

I think this post from earlier pretty much sums...

I think this post from earlier pretty much sums up my feelings. Things like racing categories and age groups/masters racing are great because they make competition more fun and accessible for people...
Replies: 2,806
Views: 522,309
Posted By rustymongrel

Here are my two cents: It seems the rules...

Here are my two cents:

It seems the rules have existed in their current form for some time now. If these rules were so blatantly misguided wouldn't podiums at major sporting events (major means...
Replies: 2,806
Views: 522,309
Posted By rustymongrel

I'm guessing they worked backwards from the...

I'm guessing they worked backwards from the fork... instead of y'know designing a better fork.

I'd really like to do something similar and better but damn if I don't see any money to be made :(
Replies: 2,806
Views: 522,309
Posted By rustymongrel

Not saying there's a better alternative but I...

Not saying there's a better alternative but I find it rather uninspiring.

The range of sizes is cool but the design, tube choice, handling geometry and fork.... yawn
Replies: 19
Views: 3,272
Posted By rustymongrel

Probably, I mean I'm extrapolating from separate...

Probably, I mean I'm extrapolating from separate tests but my point is that frames and wheels are similarly important and should both come after tires, skinsuit, helmet and even shoes IMO.
...
Replies: 19
Views: 3,272
Posted By rustymongrel

In all seriousness a T4 and likely a TK FRD with...

In all seriousness a T4 and likely a TK FRD with 28 spoke training wheels would be as fast or faster than a round tubed steel bike with race wheels.

An 808 vs a conventional alloy rim wheel is...
Replies: 19
Views: 3,272
Posted By rustymongrel

The first option, the budget sprint frame is...

The first option, the budget sprint frame is pretty good. Solid and has half decent sizing/geometry.

The second frame I really dislike. There's a bunch of them around here branded by a local bike...
Replies: 9
Views: 1,784
Posted By rustymongrel

Stiffness testing shouldn't damage the frame...

Stiffness testing shouldn't damage the frame since the loads are relatively low.
Replies: 9
Views: 1,784
Posted By rustymongrel

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulletin/1280x712/763b7e3d_538e_4013_abbd_be33963e7322_e5981831c3972d209cae15bc1967bad12c791c7a.png


That’s the classic stiffness test. It’s...
Replies: 9
Views: 1,784
Posted By rustymongrel

Aero testing is pretty easy these days. An indoor...

Aero testing is pretty easy these days. An indoor track and a power meter can get some very accurate data. Not too difficult with track bikes to swap everything over or even have doubles of certain...
Replies: 9
Views: 1,784
Posted By rustymongrel

It's for commercial use, I guess I should be more...

It's for commercial use, I guess I should be more explicit about that. The track market is small and yet so many manufacturers can't seem to get things right. I want to use the feedback from this...
Replies: 9
Views: 1,784
Posted By rustymongrel

Market Research

Hey folks, I'm doing some market research for a new track frame that is in the early stages of development. I've put together a two page survey and would appreciate it if you could fill it out. If...
Replies: 183
Views: 101,776
Posted By rustymongrel

Just FYI chains don't stretch over time. Chains...

Just FYI chains don't stretch over time. Chains are subject to stretch when load is applied but it's not something that changes over time. What people commonly refer to as "chain stretch" is caused...
Replies: 53
Views: 9,569
Posted By rustymongrel

In that case with the two aero posts it was small...

In that case with the two aero posts it was small (<5w) but measurable. This was a full aerofoil vs. a slightly truncated aerofoil... I'll let you guess which was faster.

If you wanted to start...
Replies: 53
Views: 9,569
Posted By rustymongrel

A high end aluminum track frame would be very...

A high end aluminum track frame would be very difficult product to produce these days. The market is tiny and like you said Carleton you'd have to convince people it's just as good as the carbon...
Replies: 5,940
Views: 774,912
Posted By rustymongrel

I tried and quite like adhesive stair tread for...

I tried and quite like adhesive stair tread for pursuit bars. Since the grip area is so short I don't really want any margin for error and that stuff is basically just adhesive backed sandpaper,...
Replies: 2,806
Views: 522,309
Posted By rustymongrel

Custom order through Cervélo 25,000 GBP for...

Custom order through Cervélo 25,000 GBP for frameset. Bars must be purchased seperately from British cycling.
Replies: 49
Views: 8,356
Posted By rustymongrel

Oh I know! I watched him race kids his own...

Oh I know!

I watched him race kids his own age a week ago and it was incredible how much he dominated.
Replies: 49
Views: 8,356
Posted By rustymongrel

That's my teammate on your wheel!

That's my teammate on your wheel!
Replies: 15
Views: 8,009
Posted By rustymongrel

I had this same issue with my self built steel...

I had this same issue with my self built steel frame and record cranks. The short chainstay length and straight chainstays had very little clearance. I tried a Chorus BB and it didn't help things at...
Showing results 1 to 50 of 134
 


 
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