June 30, 20215 yr Author Shock Absorber screw repaired: drilled and tapped..🙄 Seems to be a common trouble ?
July 3, 20215 yr Author Today: Cleaning from the frame with HP water. Removing the steering head bearings, I am looking for good quality Steering Bearings Tapered (not Chinese one). The originals were 45 years old, I need 45 more ☺️
July 6, 20215 yr Author Frame in workshop for some welding issues, will be done tomorrow... Swingarm is ready for the painting... I will finally paint the frame in black 😆
July 7, 20215 yr You are very fortunate to only have those frame repairs required. The following model Alpina (137/138) was their first attempt at using a fancy alloy steel for the frame tubes and when I rebuilt my model 138, the frame was cracked in about 10 places, which I believe is a fairly common situation. It was worth rebuilding it though. The 138 is a fabulous bike to ride as I'm sure your 115 will be
July 7, 20215 yr Author Indeed, I will monitor again during the manual sanding. I received today my set of spokes for the rear wheel, I would recommend Buchananspokes at techsupport@buchananspokes.com.
July 11, 20215 yr Author Done this morning... the frame is painted. A nice idea to customize my Alpina :
July 14, 20215 yr Author New seat arrived today 😑. I will have to work in the alignement with the frame/ gas tank / seat....
July 15, 20215 yr Where did you end up getting the seat from? Also, would it be possible to post a couple close-up shots of the frame while it is still bare? Namely the area of the exhaust hanger on the right side seat stay (just down from the shock mount) and also the seat mounting bracket that runs horizontally between the tubes just to the rear of the main vertical tube? Mine has some weird things going on in those areas and I'd like to put it right. Thanks
July 15, 20215 yr Author I bought the seat : https://www.inmotiontrials.com/product-category/parts/twinshock/bultaco/seats-bultaco/ I will had some pictures soon, I need to understand why the seat is not on line with the frame and the gas tank: Frame or position from the screws under the seat ? Gas tank and seat must be in one piece before lying in the frame...
July 15, 20215 yr Author Any misalignment holes/screws will induce a seat not in line with the frame... Someone had this "trouble" in the past ?
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