Ask Scrod
#8951
Your cog is slipping.
Thread Starter
Hey Scrod,
I'm looking to build a custom wheelset with Kinlin XR270 rims at Retrogression while I'm in SD to replace my 'veeps', and was wondering at 140lbs (on my way to 145-150) and commuting/street riding, would it be reasonable for me to have 20/28 for the spoke count? If not, what do you suggest? (24/28, 28/28, etc?)
The streets where I'm located are alright, (Davis) basically like this, except with a couple more cracks. Nothing too crazy.
Also, what's the difference between road front hubs and fixed gear front hubs? I found these road hubs that are pretty light (<100g), but fixed gear front hubs from novatec/miche/formula are a lot heavier(>220).
Thanks a ton!
I'm looking to build a custom wheelset with Kinlin XR270 rims at Retrogression while I'm in SD to replace my 'veeps', and was wondering at 140lbs (on my way to 145-150) and commuting/street riding, would it be reasonable for me to have 20/28 for the spoke count? If not, what do you suggest? (24/28, 28/28, etc?)
The streets where I'm located are alright, (Davis) basically like this, except with a couple more cracks. Nothing too crazy.
Also, what's the difference between road front hubs and fixed gear front hubs? I found these road hubs that are pretty light (<100g), but fixed gear front hubs from novatec/miche/formula are a lot heavier(>220).
Thanks a ton!
Spoke count is entirely up to you. I'm not a huge fan of low spoke counts but I would think 24/28 would be fine.
You already answered your own question about the difference between road and track hubs. Road hubs are generally lighter because roadies are weight weenies.
#8952
:)
Join Date: Nov 2006
Location: duluth
Posts: 3,391
Bikes: '07 Pista, '09 Fantom Cross Uno, '8? Miyata, '67 Stingray, '0? Zoo mod trials, Tallbike, Chopper, '73 Schwinn Collegiate, '67 Triumph Chopper, '69 CB350, '58 BSA Spitfire, '73 CB450
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Hey Scrod, haven't been on BD for a while, but my life is basically without purpose these days, someone has stolen (or maybe I lost) my "Truth in Reality" shirt. No more superpowers, no more supermodels, can't even get out of bed most days. Do you have an extra laying around?
#8954
Senior Member
Join Date: Mar 2014
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Probably the last update on the whole 2015 Leader 725 ordeal:
The replacement frame came today, after I was denied a replacement/warranty because I was told the frame I received was acceptable (see page 357 for story). It was only until I found a divot in the bottom bracket shell, that they sent me another frame. The frame I received appears to be structurally sound. However, there are still welding imperfections, and a tooth-sized piece is missing from the welding from where the top tube and down tube connect to the head tube. I doubt I'll be able to get another replacement, as it took an insane amount of effort to even get this one. Pictures are attached: Head tube weld , and Brake bridge weld
tl;dr: Hassle to get a replacement frame, even when I sent pictures of welding imperfections. Finally got it replaced because part of the BB was melted off. New frame comes, structurally sound but cosmetically even uglier. I've had Leader frames before (2007 735TR and 2010 725) and none have had this problem.
The replacement frame came today, after I was denied a replacement/warranty because I was told the frame I received was acceptable (see page 357 for story). It was only until I found a divot in the bottom bracket shell, that they sent me another frame. The frame I received appears to be structurally sound. However, there are still welding imperfections, and a tooth-sized piece is missing from the welding from where the top tube and down tube connect to the head tube. I doubt I'll be able to get another replacement, as it took an insane amount of effort to even get this one. Pictures are attached: Head tube weld , and Brake bridge weld
tl;dr: Hassle to get a replacement frame, even when I sent pictures of welding imperfections. Finally got it replaced because part of the BB was melted off. New frame comes, structurally sound but cosmetically even uglier. I've had Leader frames before (2007 735TR and 2010 725) and none have had this problem.
Last edited by dimethi; 09-08-14 at 09:53 PM.
#8955
Senior Member
Ehh. Those aren't great and neither are the welds on your previous frame. However neither were/are unsafe. It's about what I would expect from a budget Chinese frame. I'm not surprised that they were reluctant to issue a replacement. .
#8956
Grumpy Old Bugga
Join Date: Oct 2006
Location: Adelaide, AUSTRALIA
Posts: 4,229
Bikes: Hillbrick, Malvern Star Oppy S2, Europa (R.I.P.)
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Hey Scrod, haven't been on BD for a while, but my life is basically without purpose these days, someone has stolen (or maybe I lost) my "Truth in Reality" shirt. No more superpowers, no more supermodels, can't even get out of bed most days. Do you have an extra laying around?
#8957
Senior Member
Join Date: Oct 2013
Location: Roanoke, Va
Posts: 997
Bikes: 2013 leader 721. 2015 leader 725. 2012 fuji feather
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While they aren't beautiful welds, I'm not really sure what you expect from a 500ish dollar frameset. If you're riding your bike, it will get scratched, and dented.
If you aren't stoked on quality, there are 10 other companies that make almost identical frames but probably have worse customer service....
#8959
Brown Jersey Winner
ive put my cr-18s through hell and they barely needed any truing at all and have not caved in or sploded
serious offroad that i have no business being on with slicks, 167 mile climbing rides, daily commuting, on a 35lb bike (most likely closer to 40) and im 155
serious offroad that i have no business being on with slicks, 167 mile climbing rides, daily commuting, on a 35lb bike (most likely closer to 40) and im 155
#8960
Junior Member
Join Date: Aug 2014
Posts: 6
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Hey Scrod,
If I am replacing a chainring on a one-piece crank will any one-piece chain ring fit the crank arm?
If I am replacing a chainring on a one-piece crank will any one-piece chain ring fit the crank arm?
#8962
Your cog is slipping.
Thread Starter
Interbike and the King of Vegas race were awesome but we've got an absolutely insane amount of orders to catch up on here at the shop so I probably won't be on here much today.
We did manage to post a few pics on our Instagram but we didn't take nearly enough.
We did manage to post a few pics on our Instagram but we didn't take nearly enough.
#8963
Veteran Racer
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,792
Bikes: 32 frames + 80 wheels
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That Leader Cure looks interesting.
Also, is the new Cretin meant to replace the discontinued 721 ? The DT looks more round though.
Also, is the new Cretin meant to replace the discontinued 721 ? The DT looks more round though.
__________________
What, Me Worry? - Alfred E. Neuman
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
What, Me Worry? - Alfred E. Neuman
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
Last edited by TejanoTrackie; 09-14-14 at 10:42 AM. Reason: added Cretin
#8964
Grumpy Old Bugga
Join Date: Oct 2006
Location: Adelaide, AUSTRALIA
Posts: 4,229
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Scrod's mentioned he's busy, so I'll give a quick answer. Read up on BCD - it's the diameter of the chainring mounting bolts. It's a regular thread on here so you should find answers.
#8965
Veteran Racer
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,792
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I think it's a one-piece, aka Ashtabula, crank which has no spider, where the chainring slides on the left side arm and is held in place with the stationary cone and a pin cast on the inside of the right crank arm. They were common on old Schwinn Varsities and other models, but I'm not sure if they are interchangeable with other brands. Google Ashtabula and read one of Sheldon Brown's articles in the subject. Cranks with spiders, where bcd is an issue, are commonly referred to as 3-piece cranks (left crank arm, bottom bracket, right crank arm).
__________________
What, Me Worry? - Alfred E. Neuman
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
What, Me Worry? - Alfred E. Neuman
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
Last edited by TejanoTrackie; 09-13-14 at 08:23 PM.
#8966
Still kicking.
I think it's a one-piece, aka Ashtabula, crank which has no spider, where the chainring slides on the left side arm and is held in place with the stationary cone and a pin cast on the inside of the right crank arm. They were common on old Schwinn Varsities and other models, but I'm not sure if they are interchangeable with other brands. Google Ashtabula and read one of Sheldon Brown's articles in the subject. Cranks with spiders, where bcd is an issue, are commonly referred to as 3-piece cranks (left crank arm, bottom bracket, right crank arm).
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#8968
Junior Member
Join Date: Aug 2014
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Yeah it's an Ashtabula crank. I have the old dual chainring off. Just want to get a single, 44t chainwheel for it. Like this one: [img]41BH2-osBGL.jpg[/img] Looking at a sheldon brown article he states that they are almost all interchangeable so I guess I'll take his word for it. Unless of course someone else has had a different experience.
Last edited by adamjab; 09-14-14 at 12:56 PM.
#8969
Junior Member
Join Date: Aug 2014
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Went to a cool, oldschool, local bike shop that got me sorted out with a cool blue and chrome 44t chain ring that fits like a dream.
#8970
Banned.
Join Date: Apr 2014
Location: NYC
Posts: 175
Bikes: '04 Bianchi Pista, '14 All-City Thunderdome
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1) Thinking about building a pake rumrunner as a commuter. How are these framesets?
2) I have DA 7600 cranks, which work best with 108mm JIS BBs. Would a UN55 107mm be alright, or is it best to overshoot if you can't find the right length?
2) I have DA 7600 cranks, which work best with 108mm JIS BBs. Would a UN55 107mm be alright, or is it best to overshoot if you can't find the right length?
#8972
Banned.
Join Date: Apr 2014
Location: NYC
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Bikes: '04 Bianchi Pista, '14 All-City Thunderdome
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Square taper version of the 7600 is ISO, not JIS. The correct spindle for that crank is 109mm ISO. Read this.
Also- is there a non square taper version of 7600?
#8973
Your cog is slipping.
Thread Starter
I had the numbers mixed up. The 7710 is Octalink, the 7600 is square taper.
#8974
Banned.
Join Date: Apr 2014
Location: NYC
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Bikes: '04 Bianchi Pista, '14 All-City Thunderdome
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All city thunderdome for the track. Good buy, or bye bye? How do you like yours? Anything about it you're not a fan of?
#8975
Your cog is slipping.
Thread Starter
There is very literally nothing I dislike about the Thunderdome. It's light, stiff and the geo is just right (for me, anyway).
Considering it was designed to be ridden on the track, I can't see why it would be a bad choice.
Considering it was designed to be ridden on the track, I can't see why it would be a bad choice.