Options to convert my 27 to 700c with appropriate brakes
08-22-13, 05:36 PM
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Options to convert my 27 to 700c with appropriate brakes
Brought my bike to the LBS and he was telling me I'd have a hard time finding a set of 700c wheels that would fit my Centurion AND find long reach brakes that work with the frame.
08-22-13, 05:46 PM
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In general, a 700c rim has a 4 mm smaller radius than a 27 " wheel rim. So, check that, if you can move the brake blocks down 4 mm, no problemo.
If you cannot, then advise us as to the model of brake and model of Centurion you have.
08-22-13, 05:50 PM
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I have an 87 Centurion Sport DLX and BR-Z57 Shimano brakes.
He also advised me not to consider drilling for a recessed brake bolt.
He also advised me not to consider drilling for a recessed brake bolt.
08-22-13, 05:52 PM
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I'm wondering if these brakes would work:
https://www.modernbike.com/itemgroup....FQyk4AodiXsAug
08-22-13, 06:11 PM
#7
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the spokes are pretty badly corroded and apparently they're a little seized up so I can't true them.
I'm wondering if these brakes would work:
https://www.modernbike.com/itemgroup....FQyk4AodiXsAug
I'm wondering if these brakes would work:
https://www.modernbike.com/itemgroup....FQyk4AodiXsAug
08-22-13, 06:13 PM
#8
Senior Member
The Tektro 559s you linked go down to 73mm. On the '85 Trek 400 I converted, I used Tektro 538s and they worked, barely. 57mm reach on those.
Is this the LBS guy that was telling you all kinds of BS about how you couldn't do this, get that, etc.?
Is this the LBS guy that was telling you all kinds of BS about how you couldn't do this, get that, etc.?
08-22-13, 06:18 PM
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They were super nice. I just don't think they're fully aware of C&V stuff.
Those Tektro Silvers are super nice...
what's the model number on those?
my other concern is finding 700cs with 126mm spacing on the rear hub. I don't plan on going beyond 6 or 7 gears in the rear anyway... so I don't want to spread the frame.
I don't want to reuse my existing hubs. when I had them apart, the raceways were pretty badly worn.
I'd love to find some Shimano HB-1050s. they're freewheel and 126mm. I'd just have to learn how to lace wheels... and find proper rims.
Those Tektro Silvers are super nice...
what's the model number on those?
my other concern is finding 700cs with 126mm spacing on the rear hub. I don't plan on going beyond 6 or 7 gears in the rear anyway... so I don't want to spread the frame.
I don't want to reuse my existing hubs. when I had them apart, the raceways were pretty badly worn.
I'd love to find some Shimano HB-1050s. they're freewheel and 126mm. I'd just have to learn how to lace wheels... and find proper rims.
08-22-13, 06:19 PM
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I have done a Nishiki and a univega from 27 to 700. the drilling out is nothing, the amount of metal removed is shaving (back hole in fork only)
Forgot the models of brakes but the nishki was shimano and the univega was tektro
It does not feel like the LBS guy really wants to do this.
Forgot the models of brakes but the nishki was shimano and the univega was tektro
It does not feel like the LBS guy really wants to do this.
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(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
08-22-13, 06:21 PM
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What model brakes are on the bike now?
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When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
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08-22-13, 06:26 PM
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As others have stated, not the most thoughtful advice from the local bike shop.
08-22-13, 06:33 PM
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I would not drill a rear bridge for a recessed bolt. For a front fork, I think the Tekros do come in a nutted version. Scooper did not show the back side of his Schwinn, but I think it is nutted up front. If not, there are ways around that problem too without drilling the fork. Drilling the fork on the back side of the crown is not a big effort, nor is it super easy if you want to keep the holes in alignment.
As others have stated, not the most thoughtful advice from the local bike shop.
As others have stated, not the most thoughtful advice from the local bike shop.
as others have noted you can find nutted brakes also
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Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
Life is too short not to ride the best bike you have, as much as you can
(looking for Torpado Super light frame/fork or for Raleigh International frame fork 58cm)
08-22-13, 06:33 PM
#15
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Tektro does sell a nutted conversion kit if you can't find the right ones in a nutted mounting
https://www.tektro-usa.com/category.p...productid=1178
Harris has long reach in a nutted mount:
https://sheldonbrown.com/harris/brake...ers.html#55-73
https://www.tektro-usa.com/category.p...productid=1178
Harris has long reach in a nutted mount:
https://sheldonbrown.com/harris/brake...ers.html#55-73
08-22-13, 06:34 PM
#16
What's this lever do?
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I have done a Nishiki and a univega from 27 to 700. the drilling out is nothing, the amount of metal removed is shaving (back hole in fork only)
Forgot the models of brakes but the nishki was shimano and the univega was tektro
It does not feel like the LBS guy really wants to do this.
Forgot the models of brakes but the nishki was shimano and the univega was tektro
It does not feel like the LBS guy really wants to do this.
Shimano BR-Z57
I would not drill a rear bridge for a recessed bolt. For a front fork, I think the Tekros do come in a nutted version. Scooper did not show the back side of his Schwinn, but I think it is nutted up front. If not, there are ways around that problem too without drilling the fork. Drilling the fork on the back side of the crown is not a big effort, nor is it super easy if you want to keep the holes in alignment.
As others have stated, not the most thoughtful advice from the local bike shop.
As others have stated, not the most thoughtful advice from the local bike shop.
08-22-13, 06:48 PM
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The BR-Z57 are a 43-57 medium reach model. If you need greater reach, The Tektro R556 or R559 55-73 mm Reach Dual-Pivot Calipers will work: https://sheldonbrown.com/harris/brake...ers.html#55-73
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When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
Last edited by Barrettscv; 08-22-13 at 07:03 PM.
08-22-13, 06:51 PM
#18
What's this lever do?
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so, what are those Tektro Silvers?
the other thing is going to be finding 700c 126mm freewheel wheelsets.
the other thing is going to be finding 700c 126mm freewheel wheelsets.
08-22-13, 06:57 PM
#19
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Did you try Google-
"700c 126mm freewheel wheelsets."
"700c 126mm freewheel wheelsets."
08-22-13, 06:59 PM
#20
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The Silvers are Rivendell, obviously made by Tektro for them. Google "rivendell silver brakes"
08-22-13, 07:02 PM
#21
What's this lever do?
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Yeah, I'm digging through it now. not cheap 
ah, ok. I was googling Tektro Silvers... but that just shows me... everything they make that is available in silver.
Thanks
they don't sell them on rivbike anymore... but it looks like the R559 are them now.
Thanks
they don't sell them on rivbike anymore... but it looks like the R559 are them now.
Last edited by chapel; 08-22-13 at 07:06 PM.
08-22-13, 07:23 PM
#22
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Pars is right; I got them from Rivendell.
08-22-13, 07:29 PM
#23
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Here ya go...
https://www.velomine.com/index.php?ma...oducts_id=2114
https://www.velomine.com/index.php?ma...oducts_id=2114
08-22-13, 07:33 PM
#24
Decrepit Member
The rear brake mounting bolt is nutted; I didn't want to do any drilling on the bridge. You can clearly see the "R556" casting on the back of the caliper arm in this photo.
08-22-13, 07:52 PM
#25
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Here ya go...
https://www.velomine.com/index.php?ma...oducts_id=2114
https://www.velomine.com/index.php?ma...oducts_id=2114
I wonder what I can find locally and used that aren't knackered