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1/2" clipless pedals???

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Old 08-10-09, 04:03 PM
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mtoto85
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1/2" clipless pedals???

Does anyone know if you can get 1/2" clipless pedals? It would be for a stationary bike. Thanks!
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Old 08-10-09, 05:53 PM
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No one makes them but I believe the is an adapter to allow 9/16" pedals to be on 1/2' pedal bikes. Roger
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Old 08-10-09, 07:39 PM
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You should be able to have the holes retapped in the crank arms to the larger size. A good bike shop should have the taps available.
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Old 08-10-09, 07:57 PM
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Originally Posted by tatfiend
You should be able to have the holes retapped in the crank arms to the larger size. A good bike shop should have the taps available.
Nope- running a 9/16" tap through most one-piece cranks will leave little or no material left on the crank.

Here's the adapter Roger was talking about: https://www.kneesaver.net/ . Note that they will spread your feet apart by about an inch on each side. This works for some people, not others.

I seem to recall a 1/2" thread Wellgo pedal that accepted their add-on clipless mechanism: https://www.biketoolsetc.com/index.cg...item_id=WO-QBS
I can't find it now- maybe Bike Tools Etc. knows.
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Old 08-10-09, 08:20 PM
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Wellgo used to sell "bolt-on" SPD mechanisms that fit their BMX platform pedals. They would fit on a 9/16" or a 1/2" pedal. I've done a quick search for them, but I don't see them on eBay or in any of the online stores. We had 4 sets of them at my former shop, but I think I sold the last one before I left.

Oh.... while I was searching, I see Jeff Wills already posted as much. lol.
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Old 08-10-09, 08:45 PM
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Originally Posted by Jeff Wills
Nope- running a 9/16" tap through most one-piece cranks will leave little or no material left on the crank.

Here's the adapter Roger was talking about: https://www.kneesaver.net/ . Note that they will spread your feet apart by about an inch on each side. This works for some people, not others.

I seem to recall a 1/2" thread Wellgo pedal that accepted their add-on clipless mechanism: https://www.biketoolsetc.com/index.cg...item_id=WO-QBS
I can't find it now- maybe Bike Tools Etc. knows.
I would need to see a photo as most aluminum cranks I am familiar with look like the material thickness would be adequate for retapping. Not true of one piece steel cranks though.
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Old 08-10-09, 09:44 PM
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Originally Posted by rhenning
No one makes them but I believe the is an adapter to allow 9/16" pedals to be on 1/2' pedal bikes. Roger
Right you are. But they don't come cheap. About twice the cost of a set of really nice 1/2" pedals.

Here's Harris Cyclery -

https://sheldonbrown.com/harris/pedals.html#adaptors
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Old 08-11-09, 10:46 AM
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Clips and straps would be a lot more economical.
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Old 08-19-09, 05:06 PM
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thanks much!
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Old 02-18-23, 11:43 AM
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I know this is an ancient thread, but I check in on it every few years to see if anyone has found a solution...Also worth noting: when you Google 1/2" SPD pedals, this thread is one of the top hits.

Anyway, I saw a Venzo kit on Amazon recently and I'm wondering if it might be a possible alternative. I've never seen a product like this offered before, though someone mentioned a similar product on this thread a decade or two ago. They would likely require some custom fabrication to get the correct mounting holes onto your 1/2" pedal.

Search for the Venzo kit on Amazon by using this ASIN: B08CGQ7G3P . (I am locked out from posting URLs until I make 9 more posts. Sigh.)

A better solution might be to buy a 9/16 pedal and swap the axle, but the trick would be finding a clipless pedal and a similar 1/2" pedal that use the same (except for the threads!!!) axle.
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Old 02-18-23, 08:15 PM
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KKT (and maybe MKS) did offer road like pedals in 1/2". Sometimes labeled as BMX. like these in this link. Andy

BMXmuseum.com For Sale / 1/2" KKT Lightning Pedals
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Old 02-19-23, 05:19 AM
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Originally Posted by Andrew R Stewart
KKT (and maybe MKS) did offer road like pedals in 1/2". Sometimes labeled as BMX. like these in this link. Andy

BMXmuseum.com For Sale / 1/2" KKT Lightning Pedals
The original and ensuing posts were about finding clipless pedals that are compatible with 1/2"-threaded cranks.
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Old 03-19-23, 12:06 PM
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It's always interesting to find this topic re-emerge! These pedals are like unicorns, but they do turn up if rarely these days.

There were 1/2" clipless pedals made by Wellgo and sold for a couple of "transitional" years, back around year 2000 or so.

Variously sold under the Wellgo and Bulletproof brands, available in silver, red and black (I have all three now on my hard-ridden Schwinns). I believe that Redline may have offered a different-styled version as well.








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Old 03-19-23, 12:19 PM
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Surprised no one suggested just bolting velcro shoes directly to the pedals.
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Old 03-20-23, 11:40 AM
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Originally Posted by Kontact
Surprised no one suggested just bolting velcro shoes directly to the pedals.
No worse than deep-slotted cleats or M71 "death" pedals in terms of safety.
But I recall that one beta tester complained of getting his socks wet while using a roadside outhouse.
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Old 03-20-23, 03:00 PM
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Originally Posted by dddd
It's always interesting to find this topic re-emerge! These pedals are like unicorns, but they do turn up if rarely these days.

There were 1/2" clipless pedals made by Wellgo and sold for a couple of "transitional" years, back around year 2000 or so.

Variously sold under the Wellgo and Bulletproof brands, available in silver, red and black (I have all three now on my hard-ridden Schwinns). I believe that Redline may have offered a different-styled version as well.







Wellgo WPD 804.

Thank you, I like the simplicity and lack of special tools needed for Ashtabula cranks.
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Old 03-20-23, 05:21 PM
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Originally Posted by dddd
No worse than deep-slotted cleats or M71 "death" pedals in terms of safety.
But I recall that one beta tester complained of getting his socks wet while using a roadside outhouse.
Not many outhouses adjacent to an indoor stationary bike.
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Old 03-22-23, 08:11 PM
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Go to Wally Mart, Buy a set of their cheap pedals, They come with the adapters so the 9/16 pedal will screw into a 1/2 crank. Throw the plastic pedal away, use the adapter with whatever clipless pedal you like.
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