You beauty - let everyone see what you've got!
- foo on patrol
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Re: You beauty - let everyone see what you've got!
Postby foo on patrol » Sun Aug 03, 2014 1:32 pm
Foo
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Re: You beauty - let everyone see what you've got!
Postby ldrcycles » Sun Aug 03, 2014 2:48 pm
+1, it looks great!foo on patrol wrote:Well done on the tandem, Landy.
Foo
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Re: You beauty - let everyone see what you've got!
Postby Typhoon Ken » Sun Aug 03, 2014 3:02 pm
+2 great jobldrcycles wrote:+1, it looks great!foo on patrol wrote:Well done on the tandem, Landy.
Foo
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Re: You beauty - let everyone see what you've got!
Postby koen » Sun Aug 03, 2014 4:15 pm
Just on cranks, someone with any engineering ability that you display can save effort by just putting the timing chain down the right hand side and using standard cranks. Its actually less load on the rear bb too. I've never had problems that way. Its funny that tandems went that way as I remember old timers breaking cotter pins because of all the load on the left side.
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Re: You beauty - let everyone see what you've got!
Postby landyacht » Sun Aug 03, 2014 6:01 pm
i just remembered its supposed to be drive side pics.
brilliant day today , did marshalling for the kids in a 20km handicap,5 kids between10 and 15 and we had a bunch sprint for the finish , come home brilliant sunshine and no wind , happily cutting and welding in the shed interspersed with side trips to bunnies and a quick 10 km tandem through admiring traffic
chainring has plastic retainer as the kids tend to spit the chain all the time. smallest gear is locked out for racing and i didnt bother with a front derailleur as the bigger ring would have been locked out .roll out in high gear is only 5cm inside his limit
proper side around. thems original steel biopace on the final chainring, and you can feel it. rest of chainrings are ally.
its actually a great bike to ride solo, though you do feel like the sad old lonely rider, after 20km on the bike around town , a 40km race next day is a doddle.
those big wedges under the front seatpost are where we had a bit of flexing.
if I was building again I would make up a single long tube in a larger diameter, say a MTB size and run it straight through
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Re: You beauty - let everyone see what you've got!
Postby landyacht » Sun Aug 03, 2014 6:05 pm
hence my comment "read sheldon brown on tandem drives BEFORE you build"koen wrote:+1 looks great.
Just on cranks, someone with any engineering ability that you display can save effort by just putting the timing chain down the right hand side and using standard cranks. Its actually less load on the rear bb too. I've never had problems that way. Its funny that tandems went that way as I remember old timers breaking cotter pins because of all the load on the left side.
I wanted to maintain as many gears as possible, and sheldon simply added a 3rd chainring to a 2 ring crank ,with a spacer to keep it clear of the 2 interchangeable rings
doh!!!!!!
i certainly did it the hard way
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Re: You beauty - let everyone see what you've got!
Postby BradL » Tue Aug 05, 2014 12:49 am
Overall the bike comes in at 11kg so no lightweight, but looks well made and in good nick. A bit smaller than what I usually ride frame wise, so I'll see tomorrow if a 57ish cm frame with a maxed out seat post can accommodate me at 6'2".
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Re: You beauty - let everyone see what you've got!
Postby ldrcycles » Tue Aug 05, 2014 6:51 am
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Re: You beauty - let everyone see what you've got!
Postby BradL » Tue Aug 05, 2014 10:46 am
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Re: You beauty - let everyone see what you've got!
Postby singlespeedscott » Tue Aug 05, 2014 3:15 pm
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Re: You beauty - let everyone see what you've got!
Postby landyacht » Tue Aug 05, 2014 8:41 pm
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You beauty - let everyone see what you've got!
Postby singlespeedscott » Fri Aug 08, 2014 6:13 pm
My pimped out Diamondback Expert TG after it's shake down ride in preparation for the Noosa Strada Bianchi this weekend.
Drivetrain is Campagnolo Victory with some 7 speed Shimano 600 hubs laced to Mavic MA rims. Brakes are record. A bit overgeared for Noosa's hills with the smallest ratio being a 41 x 26, that's all I can get the derailleur to climb up due to the dropout design.
I don't rate the oversized Crmo frame, it's to stiff for general riding. However being that it's Diamondback, one of my dream MTB's back in the early 90's, I thought it would be appropriate for the dirt roads at Noosa
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Re: You beauty - let everyone see what you've got!
Postby ldrcycles » Fri Aug 08, 2014 6:40 pm
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Re: You beauty - let everyone see what you've got!
Postby singlespeedscott » Fri Aug 08, 2014 7:37 pm
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Re: You beauty - let everyone see what you've got!
Postby ldrcycles » Fri Aug 08, 2014 7:48 pm
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Re: You beauty - let everyone see what you've got!
Postby foo on patrol » Sat Aug 09, 2014 5:46 am
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Re: You beauty - let everyone see what you've got!
Postby ldrcycles » Sat Aug 09, 2014 7:32 am
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Re: You beauty - let everyone see what you've got!
Postby foo on patrol » Sat Aug 09, 2014 10:15 am
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Re: You beauty - let everyone see what you've got!
Postby ironhanglider » Sun Aug 10, 2014 3:24 pm
Great work landyacht!landyacht wrote:arghhhhh, massive faux pas
i just remembered its supposed to be drive side pics.
brilliant day today , did marshalling for the kids in a 20km handicap,5 kids between10 and 15 and we had a bunch sprint for the finish , come home brilliant sunshine and no wind , happily cutting and welding in the shed interspersed with side trips to bunnies and a quick 10 km tandem through admiring traffic
chainring has plastic retainer as the kids tend to spit the chain all the time. smallest gear is locked out for racing and i didnt bother with a front derailleur as the bigger ring would have been locked out .roll out in high gear is only 5cm inside his limit
proper side around. thems original steel biopace on the final chainring, and you can feel it. rest of chainrings are ally.
its actually a great bike to ride solo, though you do feel like the sad old lonely rider, after 20km on the bike around town , a 40km race next day is a doddle.
those big wedges under the front seatpost are where we had a bit of flexing.
if I was building again I would make up a single long tube in a larger diameter, say a MTB size and run it straight through
Single side drive works well, but what you have looks much more traditional. I like that you have gone to the effort of lengthening the back end to fit full sized stokers.
I remain a fan of Ghost chainrings as tensioners, they work better, are quieter, don't come out of adjustment and are just eye-catching. You can put a spiral paint job on them and really freak people out. I notice that your cranks are not exactly in phase. I know that it's not always possible and where it isn't, the usual practice is to put the captains crank further forward. You'll appreciate having the brifters when they are fitted, you tend to make a lot more gear changes on a tandem.
No reason to feel sad and lonely riding a tandem by yourself. Nearly everyone has travelled using vehicles with spare seats at some stage. Besides you have the option to choose to pick up hitchhikers or not.
With skills like that you should consider getting the lugs and just building a dedicated tandem from scratch with eccentric, tandem forks etc.
Cheers,
Cameron
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- foo on patrol
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Re: You beauty - let everyone see what you've got!
Postby foo on patrol » Sun Aug 10, 2014 7:54 pm
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Re: You beauty - let everyone see what you've got!
Postby landyacht » Sun Aug 10, 2014 8:40 pm
all this bike building is a learning curve. I had a session of trying out the pedal sync slightly forward and slightly back , and have now settled on them being in sync. riding just feels wrong out of sync.ironhanglider wrote:Great work landyacht!landyacht wrote:arghhhhh, massive faux pas
i just remembered its supposed to be drive side pics.
brilliant day today , did marshalling for the kids in a 20km handicap,5 kids between10 and 15 and we had a bunch sprint for the finish , come home brilliant sunshine and no wind , happily cutting and welding in the shed interspersed with side trips to bunnies and a quick 10 km tandem through admiring traffic
chainring has plastic retainer as the kids tend to spit the chain all the time. smallest gear is locked out for racing and i didnt bother with a front derailleur as the bigger ring would have been locked out .roll out in high gear is only 5cm inside his limit
proper side around. thems original steel biopace on the final chainring, and you can feel it. rest of chainrings are ally.
its actually a great bike to ride solo, though you do feel like the sad old lonely rider, after 20km on the bike around town , a 40km race next day is a doddle.
those big wedges under the front seatpost are where we had a bit of flexing.
if I was building again I would make up a single long tube in a larger diameter, say a MTB size and run it straight through
Single side drive works well, but what you have looks much more traditional. I like that you have gone to the effort of lengthening the back end to fit full sized stokers.
I remain a fan of Ghost chainrings as tensioners, they work better, are quieter, don't come out of adjustment and are just eye-catching. You can put a spiral paint job on them and really freak people out. I notice that your cranks are not exactly in phase. I know that it's not always possible and where it isn't, the usual practice is to put the captains crank further forward. You'll appreciate having the brifters when they are fitted, you tend to make a lot more gear changes on a tandem.
No reason to feel sad and lonely riding a tandem by yourself. Nearly everyone has travelled using vehicles with spare seats at some stage. Besides you have the option to choose to pick up hitchhikers or not.
With skills like that you should consider getting the lugs and just building a dedicated tandem from scratch with eccentric, tandem forks etc.
Cheers,
Cameron
just what is a ghost chainring?
cant see me building another tandem. ive got one now , and have had an offer of another mixte tandem with 5 speed sturmey.
besides the new replica is well on the way
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Re: You beauty - let everyone see what you've got!
Postby Mulger bill » Sun Aug 10, 2014 9:20 pm
Here you go...landyacht wrote: just what is a ghost chainring?
London Boy 29/12/2011
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Re: You beauty - let everyone see what you've got!
Postby bog1953 » Mon Aug 11, 2014 5:06 pm
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