fork blade specifically designed for disc applications

[claritycycler]

Comments?

NOVA ROAD OVAL Disk Brake fork blade 1.1 x 24 Oval :: TUBES STEEL :: Nova Cycles Supply Inc.

thanks, Brian

[steve garro]

Comments?

NOVA ROAD OVAL Disk Brake fork blade 1.1 x 24 Oval :: TUBES STEEL :: Nova Cycles Supply Inc.

thanks, Brian

Looks cool!
Be nice to see how they rake.....
Lon sent me a sample of his new 29er stay & it's really nice......
- Garro.

[shirk]

Do they have a seat tube sized for dropper posts in the works?

[blasdelf]

my new fork uses these jawns and a custom willits-style disc tab: NOVA CRMO ROAD 25.4 OVAL 0.9/0.6 :: FORK BLADES :: TUBES STEEL :: Nova Cycles Supply Inc.

a friend is building a new fork for his tandem using these with the same oversize crown: CRMO 25.4mm OVAL TANDEM CHAINSTAY :: TANDEM CHAINSTAYS :: CHAINSTAYS :: TUBES STEEL :: Nova Cycles Supply Inc.

the listed weight is no joke, they really are fully twice as heavy, and look just a bit goofy after being raked on the same jig

[claritycycler]

Got any pics of either fork blasdelf?

thanks, Brian

[veryredbike]

Would it make any sense to just use one of these on the drive side and use a standard blade on the other?

[steve garro]

Kind of what I was doing with these: NOVA CRMO ROAD OVAL 1.0 x 24 Oval (28/19) :: TUBES STEEL :: Nova Cycles Supply Inc.
Check the specs - they ARE more then 1.8mm at the tip, if you chop them back to 14mm dia. at the tip they are good to go - I always used slotted dropouts.
Makes a nice fork.
- Garro.

[steve garro]

These work fine: NOVA CRMO ROAD OVAL 1.0 x 24 Oval (28/19) :: TUBES STEEL :: Nova Cycles Supply Inc.
- Garro.

[claritycycler]

Kind of what I was doing with these: NOVA CRMO ROAD OVAL 1.0 x 24 Oval (28/19) :: TUBES STEEL :: Nova Cycles Supply Inc.
Check the specs - they ARE more then 1.8mm at the tip, if you chop them back to 14mm dia. at the tip they are good to go - I always used slotted dropouts.
Makes a nice fork.
- Garro.

Do you mean you use one of those blades for disc mount and then another "standard" blade for the other side?

thanks, Brian

[steve garro]

Do you mean you use one of those blades for disc mount and then another "standard" blade for the other side?

thanks, Brian

No.
- Garro

[e.Gellie]

Comments?

NOVA ROAD OVAL Disk Brake fork blade 1.1 x 24 Oval :: TUBES STEEL :: Nova Cycles Supply Inc.

thanks, Brian

it beats me why so many disc forks don't have reversed-slot tips. It's not like this is a new issue. I have used three forks with conventional downward facing slots which (thankfully!) had "lawyers lips". Under hard braking, the braking forces pushed the axle very quickly out of the slot where it hit the lawyers lips. Or more specifically, the head of the quick-release skewer hit the lawyers lip. There was only 2 millimetres of movement, but that was taken up only on the left side, and not on the right, so the wheel skewed in the fork. And so the rotor got slightly misaligned to the caliper. And rubbed. Those forks sucked. One was a recent big-name 29er suspension fork!

So I was relying on the skewer maintaining its integrity to not have the front wheel be forced out.

I see the fork tip suggested for these fork blades are the DROPOUT FRONT PLUG-IN STYLE FITS 18mm BLADE NOV_DROP_106 They appear to be designed for a conventional fork, with the slot facing downward with the eyelet on the rear. They do not appear to have lawyers lips........ So if I realised I should invert them, the eyelet would be on top (!!!) No good for fenders... .

Can we all ask our suppliers to get real and design/supply disc-compatible forward facing dropouts, with eyelets and lawyers lips. Small lip bumps that can be filed-off. The eyelets and lips can easily be removed by a framebuilder if they choose. The slightly forward-facing slot will 'scoop-up' the axle under braking forces. (the fork-tip slot only needs to be slightly angled forward of a line drawn from the brake-pad through the wheel axle.) Paragon's straight-slot tips sufferered axles squirming out too on a fork I have here.

It is a very real problem that novice framebulders, (and even experienced old-school builders too, I have observed), do not realise the need for this detail.

FYI .... I use 1.0/0.7 fork blades on road-disc forks, with my own design of 'Willits' style disc mount, with a long brace that tapers to a fine point up the back of the fork leg. On my test-mule fork, with disc, canti and long-reach caliper mounts, it works just fine.

I'd consider these Nova blades for a heavier rider.

[Jonathan]

Be the supplier.

[Mark Kelly]

Can we all ask our suppliers to get real and design/supply disc-compatible forward facing dropouts, with eyelets and lawyers lips.

Until that happens, could one not simply swap left for right and re-braze the eyelets?

On droputs like the Paragon DR1050 the eyelets would not need any modification as far as I can see. No lawyer lips though.

DR1050.jpg

[EricKeller]

IMO, the recommended dropouts don't fit anyway, they have a huge gap. I guess if you are welding them they would be fine.

[Clockwork]

These are the Nova blades and dropouts.

https://www.flickr.com/photos/clockw...7644301685622/

[e-RICHIE]

These are the Nova blades and dropouts.

https://www.flickr.com/photos/clockw...7644301685622/

Are those dropouts in backwards? I asked earlier, and wondered why
the plane of the blade center line doesn't intersect the axle point atmo.

[Nathanrtaylor]

Are those dropouts in backwards? I asked earlier, and wondered why
the plane of the blade center line doesn't intersect the axle point atmo.

My guess is they are, and it's probably because of the disc caliper mount. Facing the opening forward eliminates the tendency for the disc torque to push the axle down out of the dropout if the opening were down like normal.

Now I'll be quiet and let an expert give the real reason.

[waterman]

The Paragon family of straight plug dropouts should check all the boxes. When installed on raked blades the opening will face slightly forward so that braking forces should pull the axle in and not out. They have lawyer lips. They are symmetric and available with 0, 1, or 2 eyelets. They can be welded or brazed. And they are made by Paragon so no questions about quality.
www.paragonmachineworks.com - DR2017SteelFrontDropoutPlugTypeNoEyelets

[GEBLA]

I have my own fork ends laser- or waterjet cut from high strength steel with a special shape for disc brakes since 2008, no problems so far. I also use stainless surfaces where the hub and the caliper touch the fork, so no paint can compress over time an lead to misalignements of the brake.

29er MTB:

GEBLA-Classic29er44.JPG

Tandem:

GEBLA-Tandem-72.JPG

Cyclocross:

GEBLA-4013-30.JPG

Raked, suspended commuter:

GrößenänderungDSC_0183.jpg

GrößenänderungDSC_0216.JPG

So I can only admit: Be you supplier.

Greetings,
Georg

[Clockwork]

Are those dropouts in backwards? I asked earlier, and wondered why
the plane of the blade center line doesn't intersect the axle point atmo.

They are in backwards and the axle ends up a few mm's off center. Even if they were in the other way the axle would be off center. I'm not worried about this at all since there's plenty of bronze in there and the offset is minimal.