Pre-65 Bikes

Всем привет! Ищу тех у кого был такой RTX. Готов пообщаться и поделится информацией о мотоцикле Минск.

Firstly - Hello to you all I am picking up a Sprite trials bike this weekend fitted with a Sachs 125 engine, accompanying it is a spare Sachs engine & chromoly frame. The bike has been sat festering in my dads shed for the best part of 15 years, prior to this it was owned by my great uncle. I stripped to restore it approx 8 years ago, the restoration was halted by a move & I recently stumbled upon this thread which has rejuvenated my interest. My dad has now agreed to let me have the bike as he has no time in which to restore it but I have noticed very limited information available on the internet, I have trawled all the information available online but was won…

Can anyone help identify this Alloy barrel which came with some Villiers engine parts ?,it fits Villiers 37A cases and is 66mm bore . I'm sure its a trials barrel not scrambles

Is there a diagram as a starting point to set up a PVL ignition on the D14 BSA Bantam ? Thanks in advance

I am the owner of a 1959 tiger cub. I wonder if it is a good idea to fit an oil seal in the guide valves to avoid some oil in the chamber combustion...?. There exist some from Norton with similar interior size. It only needs to mechanize the guide. Does anyone have any idea or sugestions about it? Thanks in advance

Hi, I've inherited a very late TR20 (TR20 18**) that had been put in the back of a garage for 50 years, and then my father took it on. He unfortunately passed away having started the work and I need some help has I have no reference photos. Some detail photos all over of an original/known good restoration of one of the later bikes would be extremely helpful. There have been some mods done over the years, and I just need to work out which of those was by the previous owner, and which by the factory. In particular, How the original style footpegs are mounted - I believe I have the correct brackets and pegs, but I can't make them work. T…

where is a good place to buy 40 hole alloy rims 21" and 18"

Please can someone id a frame number its believed to be a DMW but unsure someone has tryed bacon books but no luck Spoiler

As I inch closer to being half way done assembling my motor, I need to decide what to use for a gearbox sprocket. I have a 18T crank sprocket and a 52 on my rear wheel. Standard SS ratios in a dedicated trials machine. My local suppler (bsaunitsingles) has suggested a 13T as a good starting point but there is also a 12T available. I ran out of "meaningful" progress while waiting for parts to I took the case covers to the polishing wheel. Ill never do that again but it sure looks nice.

Good evening wonder if anyone can give me some advice. I have inherited a b40 off my father he took the clutch apart a few years back now. Could anyone please tell me the way the clutch plates go back in ie friction plate, steel plate, friction plate ect? And what oil and capacity should I use in the clutch/primary chain. Many thanks

I was wondering if anyone could help me identify a bsa frame. The engine is a b40 and I was told the frame is a b25. There are a couple of things that seem strange. The log book has it down as a March 65 bike, but I am pretty sure the earliest b25’s were 68. I have the frame number in the log book, but I can’t find it on the frame, does anyone know where it should be. Also it seems like the frame has been modified. There should be 2 center posts, from the foot pegs up to the front of the seat. It seems like these have been modified to one center post. After having a look on google I can see a couple of b40 trials bikes that look the same. Does this lo…

Has anyone done this, any issues with fitting it in terms of chain alignment and rubbing the tyre?

A teaser for the oldies: What's the connection between a Quality Street tin and a trials bike?

I use Pirelli MT43 tyres on my B40 which unlike a lot of trials tyres are ok for road use. I once tried a Michelin trials competition and after a couple of miles it heated up and the bike was un rideable. I want a tyre for my Norton but as it has a 19” wheel tyre choice is limited. Pirelli don’t do an MT43 and the only others I can find are an Ensign which isn’t really a proper trials tyre and a Mitas. The Mitas looks like a full 400x19 trials tyre but I’m unsure as to whether it will be too soft for the road. The bike will mostly be used on the road but I might do the occasional long distance trial etc. I’m not bothered about wear characteristics or trials grip but …

Hello, Although I have a 1964 T20 Cub, the problem I have concerns a 1963 T20 engine that I am trying to rebuild. I am missing a couple of crank case covers and despite my best efforts I have not been able to locate them. I am hoping that someone out there in the Internet world will be able to help me. I am trying to find the following items :- Part Number E 4449 or E 4787 Right side Inner Cover and Part Number E 4089 Left Outer Cover. If anyone out there has any of these items and they are prepared to sell them, or if you know someone that has engine parts for a Triumph Cub and may just have these items sitting in a box somewhere and you are prepared to give me…

Can the cylinder head be removed with engine in frame?

Can anyone help, building a Trifield but not sure what swinging arm to use. The frame is 1958 but the existing swinging arm will only allow a 17inch rear wheel. Any ideas! And does anyone have one. Thanks JOJOTUT

Hi guys i hope you are keeping well i have opportunity to get Bsa B25 engine are they any good for trials . pros and con for trials please i want to put in royal enfield crusader frame sinve it is very light . regards

What size taper roller bearing do you guys use for villiers services yokes, they did not have any and meriden is out of stock as well?

I currently have a length of flexible steel hose joining a motocross tailpipe and normal bantam exhaust. I would like a middle silencer box to fit roughly where a traditional airbox would go. Any recommendations Any advice welcome