1977 PX10-LE (black)
#1
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1977 PX10-LE (black)
i've had this bike for about ten years and after a break got back into riding recently. the more i ride i realize i'd like to change some things, plus it's in need of a good cleaning.
i'm thinking a super lj (or similar) front derailleur to replace this shimano replacement that just lost a pin and dropped. also i recently realized i might prefer a less-wide handlebar, so was thinking of using a nitto olympiade i have hanging around. i think it's a b115 right now. Maybe some retrofriction shifters. also i think a slightly longer stem would work better for me.
gearing - i've been trying different freewheels and messing around with the gear ratio calculator. would be nice to have a lower gear for hills as i've got some knee issues. chainrings are 52/36 and freewheel was 14-28 but i just put a 14-31 regina cx that shifts nicely but i think i'll be able to fit a 6 or 7 speed so would like to try that. maybe i could go up to 32t? i'm considering making the front something like 48/32, or maybe just leave the 36.





i'm thinking a super lj (or similar) front derailleur to replace this shimano replacement that just lost a pin and dropped. also i recently realized i might prefer a less-wide handlebar, so was thinking of using a nitto olympiade i have hanging around. i think it's a b115 right now. Maybe some retrofriction shifters. also i think a slightly longer stem would work better for me.
gearing - i've been trying different freewheels and messing around with the gear ratio calculator. would be nice to have a lower gear for hills as i've got some knee issues. chainrings are 52/36 and freewheel was 14-28 but i just put a 14-31 regina cx that shifts nicely but i think i'll be able to fit a 6 or 7 speed so would like to try that. maybe i could go up to 32t? i'm considering making the front something like 48/32, or maybe just leave the 36.






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#2
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Really nice bike. The stronglight 99 crank gives you a nice range of possible chainrings (it can go as small as 28 on the inside) to improve climbing. I'm impressed (and a bit surprised) that the short cage simplex sx 660 RD can handle a 14-31 freewheel. I thought these topped out at 26 but velobase doesn't have the info on this (there are threads on this on BF):
https://www.velobase.com/ViewCompone...7e2cd&Enum=108
The nitto bars won't work with your french stem. You'll have to go with a nitto (or other 22.2/ 25.4) stem (the Olympiade is 25.4 right?). A nitto stem might drop in or you may have to sand it a bit as French bikes use 22.0 stems with a 25.0 clamp.
Very pretty bike and nicely set up. There is little I would change other than dialing in the fit and gearing to your liking.
.
https://www.velobase.com/ViewCompone...7e2cd&Enum=108
The nitto bars won't work with your french stem. You'll have to go with a nitto (or other 22.2/ 25.4) stem (the Olympiade is 25.4 right?). A nitto stem might drop in or you may have to sand it a bit as French bikes use 22.0 stems with a 25.0 clamp.
Very pretty bike and nicely set up. There is little I would change other than dialing in the fit and gearing to your liking.
.
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Looks like my old one.

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#4
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#5
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Really nice bike. The stronglight 99 crank gives you a nice range of possible chainrings (it can go as small as 28 on the inside) to improve climbing. I'm impressed (and a bit surprised) that the short cage simplex sx 660 RD can handle a 14-31 freewheel. I thought these topped out at 26 but velobase doesn't have the info on this (there are threads on this on BF):
https://www.velobase.com/ViewCompone...7e2cd&Enum=108
The nitto bars won't work with your french stem. You'll have to go with a nitto (or other 22.2/ 25.4) stem (the Olympiade is 25.4 right?). A nitto stem might drop in or you may have to sand it a bit as French bikes use 22.0 stems with a 25.0 clamp.
Very pretty bike and nicely set up. There is little I would change other than dialing in the fit and gearing to your liking.
.
https://www.velobase.com/ViewCompone...7e2cd&Enum=108
The nitto bars won't work with your french stem. You'll have to go with a nitto (or other 22.2/ 25.4) stem (the Olympiade is 25.4 right?). A nitto stem might drop in or you may have to sand it a bit as French bikes use 22.0 stems with a 25.0 clamp.
Very pretty bike and nicely set up. There is little I would change other than dialing in the fit and gearing to your liking.
.
i was surprised the 14-31 worked on there too. i've read through some threads here and got confused at the many variations of simplex derailleurs so thought i'd just give it a shot. if i go down to something like 32 up front, that should give me enough for hills.
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I have an older PX-10. I'm so used to seeing them in white, that it is super cool to see a black one!
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#7
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I started disassembling the bike and the handlebars are Philippe Atax Franco Italio D352, so I was wrong about the Nitto. The other 22 stem (anyone know that logo?) I have does seem to fit the Olympiade handlebars though.
I'm also not totally confident about the freewheel going up to 31/32. One of the pulley wheels is broken, maybe caused by that? I think I'll go back to 14-28 like I had for years (or try 30) and go for 32/48 chainrings or something similar. Or maybe get a triple. Going to need a new front derailleur anyways. Any reason not to go the triple route? I know I'd need a new spindle and was considering a sealed bb anyways. Velo orange has them with spindles up to 122 (could be a close call) and I see Neco brand ones up to 127mm.
I'm also not totally confident about the freewheel going up to 31/32. One of the pulley wheels is broken, maybe caused by that? I think I'll go back to 14-28 like I had for years (or try 30) and go for 32/48 chainrings or something similar. Or maybe get a triple. Going to need a new front derailleur anyways. Any reason not to go the triple route? I know I'd need a new spindle and was considering a sealed bb anyways. Velo orange has them with spindles up to 122 (could be a close call) and I see Neco brand ones up to 127mm.
