Full titanium Brompton clone, now done (pics)
01-08-19 | 09:15 PM
#3
Señor Mambo
Joined: Jan 2004
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From: Fremont, CA
Bikes: TST roadie, Cannondale CAAD 3, Surly Karate Stokemonkey Leap, Tern Cargo Node, Helix Alfine; 36er and 29er Triton Unicycles; a couple Bike Fridays; one Brompton; RadPower Radburro
THAT is what Brompton should be evolving to, post-haste!
But 13lbs? Is it safe to ride?
But 13lbs? Is it safe to ride?
01-08-19 | 09:26 PM
#4
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Joined: Sep 2005
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From: Greensboro, NC
Bikes: Many Downtube Folders :)
Nice bike!
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Designer of Downtube Folding Bike
Ph.D. Temple University ( Math )
Biked across the USA twice
Semi-active chess player ( two time Bahamas National Champion )
Sivananda ( Bahamas ) Trained Yoga instructor ( 2013 ) and ThetaHealer since 2013
Bicycle delivery worker for Jimmy John's. Delivering is the best workout I have ever had.
01-08-19 | 09:39 PM
#6
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01-08-19 | 09:42 PM
#7
LET'S ROLL
Joined: Nov 2009
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From: NEW YORK, NY - USA
Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X
I hope Brompton doesn't copy that.
Front brake 2013 Brompton by 1nterceptor, on Flickr
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01-08-19 | 09:44 PM
#8
LET'S ROLL
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From: NEW YORK, NY - USA
Bikes: 2014 BMC Gran Fondo, 2013 Brompton S6L-X
Otherwise, looks good. 
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01-08-19 | 09:46 PM
#9
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Seems the brake pad holders are backwards on both calipers.
I hope Brompton doesn't copy that.
Front brake 2013 Brompton by 1nterceptor, on Flickr
I hope Brompton doesn't copy that.
Front brake 2013 Brompton by 1nterceptor, on Flickr
2019 Brompton uses integrated brake pads, to prevent dummies (like me) from installing them backwards.
01-09-19 | 08:15 AM
#10
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Joined: Aug 2016
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So what is story of SJ heart SH? Is this suppose to be a wedding present?
Also does the titanium rear triangle comes with mounting points for the derailleur cables, the chain pusher etc? Did you have to 3D print parts for this project?
Also does the titanium rear triangle comes with mounting points for the derailleur cables, the chain pusher etc? Did you have to 3D print parts for this project?
01-09-19 | 09:51 AM
#11
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May I ask how much did it cost? Brompton needs to stop making owner buy after market modifications and partner with these manufacturers. They need to stop with these special paint jobs and really modernize their bikes.
01-09-19 | 11:05 AM
#12
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Yes, this bike is a wedding anniversary gift for my wife.
And the rear frame is almost identical to the 2016 Brompton titanium frame (the seller claimed it actually IS one).
I did custom design/print tensioner and pusher though (mostly for fun, but it saved some money and weight)
I have paid $1200 for titanium frame + handlepost (combo deal), $300 for fork and $480 for rear frame. Ultralight wheelset was $190 (Chinese magic!)
According to my spreadsheet all other bits added up to $1400, so total build cost was ~$3600.
And the rear frame is almost identical to the 2016 Brompton titanium frame (the seller claimed it actually IS one).
I did custom design/print tensioner and pusher though (mostly for fun, but it saved some money and weight)
I have paid $1200 for titanium frame + handlepost (combo deal), $300 for fork and $480 for rear frame. Ultralight wheelset was $190 (Chinese magic!)
According to my spreadsheet all other bits added up to $1400, so total build cost was ~$3600.
Is she a single speed?
01-10-19 | 03:37 AM
#17
Stardust
Joined: Apr 2017
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From: Rio de Janeiro
Bikes: Dahon Curve Sturmey Archer Srf8; Brompton Sturmey Archer Srf8; Brompton M6r
or 2 black edition costs!
its a hell expensive gift!
01-10-19 | 01:33 PM
#19
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From: Bangkok: hottest average temperature :(
Bikes: *1998 GT Forte Ti 700c, Totem KDS-D 26" fatbike, BirdyGT 18", Brompton M2LX 16"
This might be the nicest Brompton ever. Did you record the frame weight? I wonder how much is saved over a steel one.
I wish the people that made these frame parts would do an integrated headset like on modern bikes where the stem direct clamps onto the steerer. The Brompton quill stem design is rubbish. Much cheaper Dahons and Terns have these modern stem designs.
I wish the people that made these frame parts would do an integrated headset like on modern bikes where the stem direct clamps onto the steerer. The Brompton quill stem design is rubbish. Much cheaper Dahons and Terns have these modern stem designs.
01-10-19 | 02:14 PM
#20
Palmer
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From: Parts Unknown
Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl
01-10-19 | 02:26 PM
#21
Palmer
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From: Parts Unknown
Bikes: Mike Melton custom, Alex Moulton AM, Dahon Curl
Technically and legally not a 'Brompton', which is a trademarked product manufactured in the UK, but I think we all know what you mean. It must be a highly desired dream build given that Bromptonites haven't assaulted the thread with cries of 'Chinese stealing Andrew Ritchie's intellectual property' (note: the relevant patents expired decades ago).
01-10-19 | 03:13 PM
#22
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Just because someone likes Bromptons it does not necessarily mean he or she would be a blind fanboy/girl w/o relation to reality.
01-10-19 | 06:46 PM
#24
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S post: 461gr (-390gr)
Fork: 311gr (-240gr)
Rear: 423gr (-350gr)
So total saving is 1710gr over full steel Brompton, or 1120gr over Ti Brompton.
Last edited by Raxel; 01-10-19 at 07:06 PM.
01-11-19 | 03:04 AM
#25
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From: Tokyo
Bikes: Brompton S2L-X Raw Lacquer
Velotto Champion Mini 28-349. Slightly narrower than Kojak 32-349.
Frame: 1271gr (-730gr)
S post: 461gr (-390gr)
Fork: 311gr (-240gr)
Rear: 423gr (-350gr)
So total saving is 1710gr over full steel Brompton, or 1120gr over Ti Brompton.
UFB had cassette and forward/rear derailleurs. Now there are wider rear frame available (135mm spacing) OR custom narrow spacing wheelset so you can build a better replica of UFB (2x11 speed)
Frame: 1271gr (-730gr)
S post: 461gr (-390gr)
Fork: 311gr (-240gr)
Rear: 423gr (-350gr)
So total saving is 1710gr over full steel Brompton, or 1120gr over Ti Brompton.
UFB had cassette and forward/rear derailleurs. Now there are wider rear frame available (135mm spacing) OR custom narrow spacing wheelset so you can build a better replica of UFB (2x11 speed)
How about ride feeling on this bike?