Down Tube
Down Tube
I have a Flying Scot Frame with a damaged down tube is it possible to get reynolds531 tubing to replace tube ?
I take it the tube is brazed or silver soldered into top and bottom brackets? would it need jigged during replacement process?
Um, yes, it isn’t all that tough to replace a steel tube IF you know how to braze and how to machine steel tube. If the frame is welded, throw it away and buy a new one… it isn’t worth the grief.
Reynolds 531 is readily available from several places… just do a search.
Here is a QUICK explanation of how a downtube replacement is done…
1) Take exact measurements of the tube to be replaced and prepare the new one;
2) Cut out the center of the tube leaving about 3″ at the BB and headtube;
3) Heat the BB and remove the remaining piece of tube and clean the BB of brazing residue;
4) Heat the headtube (HT)/downtube (DT) lug, remove the remaining piece of DT and clean the lug of brazing residue;
5) Separate the top tube (TT) from the lug, clean the lug;
6) Insert the new DT into the BB then insert the top tube and DT into the head lugs;
7) Lay the frame so that the TT and DT lay FLAT on a table. Be careful not to lay the frame on a lug or the BB. Tack all the joints;
Build up some heat on the BB and complete the joint. Continue with the TT and the DT. Make sure to fill the lugs completely and not to overheat the tube;
9) Do a final alignment check, sandblast the frame, and repaint.
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VINTAGE SIMPLEX BREV BICYCLE DOWNTUBE Shifter Set $29.00 |
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Downtube Cable Housing stops. Bolt on STI. Black barrel adjusters, no bolts. $13.50 |
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Campagnolo Gear Cable Adjuster Downtube NEW NOS $4.99 |
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Campagnolo Record Gear Cable Adjuster Downtube NEW NOS $11.50 |
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Downtube cable housing stops. Bolt on STI. Left Campy; right Shimano $5.00 |
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Dura Ace Downtube Shifters. SL-7402. 8spd compatible or friction. $33.00 |
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Dura Ace downtube shifters. 10spd compatible. SL-7900 $46.00 |
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SHIMANO 600 DOWNTUBE GEAR LEVER CABLES NEW VERY RARE! $7.88 |
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CLARKS EASY GLIDE ORANGE COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE GREEN COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE ORANGE COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE GREEN COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE GREEN COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE ORANGE COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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CLARKS EASY GLIDE ORANGE COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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Vintage Shimano 600 Downtube Road Bike Shifters Nice!! $15.50 |
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Campagnolo Nuovo Record Downtube Shifters With Used Original Cables Complete NR! $29.99 |
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Nos Campagnolo Nuovo Record down tube Shift Levers $60.00 |
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Shimano STI Down Tube Cable Stops $35.99 |
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SunRace 6-Speed Clamp-on Downtube Shifters (28.6mm Clamp Size) $15.99 |
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SunRace 7-Speed Clamp-on Downtube Shifters (28.6mm Clamp Size) $14.99 |
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Cable Stop Clamp Downtube with Adjusters 4 Shimano STI $24.95 |
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Vintage Suntour BICYCLE DOWNTUBE POWER SHIFTERS $26.00 |
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DURA ACE DOWNTUBE SHIFTERS 10SPEED $47.00 |
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SHIMANO 600 DOWNTUBE GEAR LEVER CABLES NEW VERY RARE! $7.88 |
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Sun Tour Down Tube Shifters Model LD-1500 PDL-M NEW with cables $18.00 |
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Campagnolo Nuovo/Super Record Down Tube Shift Levers ~ Braze-on $26.78 |
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Vintage Campagnolo Friction Downtube Shifters $5.50 |
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Vintage Campagnolo C Record Friction Downtube Shifters Levers $89.99 |
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Shimano Dura Ace Ultegra STI Downtube Cable Stop w/ Adjuster Set of Two $24.95 |
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Nos Shimano DOWNTUBE DOWN TUBE SHIFTER DERAILLEUR Cable Guide $12.95 |
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Token CNC Shift Cable Adjuster 5mm Alloy Downtube BLUE – TK690 $11.99 |
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Token CNC Shift Cable Adjuster 5mm Alloy Downtube SILVER – TK690 $11.99 |
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Problem Solvers Downtube Shifter Boss Covers Silver $19.91 |
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Shimano STI Down Tube Cable Stops $42.96 |
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SunRace 6-Speed Clamp-on Downtube Shifters 28.6mm $17.91 |
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SunRace 7-Speed Clamp-on Downtube Shifters 28.6mm $17.91 |
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Campagnolo Downtube/Bar End Index Springs $8.91 |
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Shimano Dura Ace 7400 7402 8 speed vintage downtube shi $118.50 |
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3 Vintage downtube chainstay gear Derailleur Cable guides screw on clips $4.95 |
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Shimano SL-6400 600 Ultegra Downtube shifters 7 speed $20.00 |
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DYNO PRO COMPE DOWN TUBE FRAME STICKER $7.00 |
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Campy Record Carbon Road Brake Levers Single Speed Downtube Lever Campagnolo $40.00 |
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GT BICYCLES AGGRESSOR DOWNTUBE FRAME STICKER CHROME $7.00 |
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Dura-Ace Downtube Shifter SL-7900 $84.95 |
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VINTAGE Campagnolo Downtube Shifter set $45.00 |
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Suntour down tube shift levers, Friction $5.25 |
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Campagnolo Vintage Downtube Shifters. Great Condition! $8.50 |
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RIGHT SIDE FRAME DOWN TUBE CABLE STOPS DURA ACE $15.80 |
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Shimano Deore Clamp-On Downtube Shift Levers Self-Centr $69.95 |
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CLARKS EASY GLIDE ORANGE COATED DOWN TUBE GEAR CABLE UNIVERSAL NIPPLES RETRO ITE $1.56 |
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Shimano RX 100 Down Tube Shifters 7 Speed $10.49 |
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Sun Race stem mount Down Tube Shifter Set with cables $19.99 |
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Lizard Skins DOWNTUBE Bike Bicycle FRAME/PAINT PROTECTOR CLEAR PATCH $11.87 |
