Pre-65 Bikes

Anybody know where I can get a frame nickel plated? Thanks in anticipation.

Hi Guys. Just playing with the idea of converting a magneto to electronic, for one of our bikes. Was thinking of useing A " Runtronic" unit with the sensor in the mag. As enyone performed this convertion? Would be intrested. Regards Charlie.

I have a 1962 C15 that I am converting to trials, I have junked the worn concentric carb and have bought an Amal 622 and a 1.5" long inlet manifold extension, it will be running PVL. Is anyone else running a 622 on a C15 and can they tell me what jetting they use and what needle position they find best?

Looking for info on converting a D7 into a trials bike for Classic/Pre 65 trials, what mods would you recomend doing to a D7 to get it trials ready? I'm thinking strip down the frame and sharpen up the head angle (what degrees?) maybe widen the swing arm for a slightly bigger tire, alloy tank/seat........ I'd be gratefull for any advice/links/pics etc... Thanks.

Hi Fellas I am new to the forum and am asking for help in setting up my cub. It is all original comerford cub, one of the first 20 shipped to Comerfords. It is fitted with an amal 376/314 carb, I have renewed all jets but can,t get it to run without popping. I have checked all joints and they are airtight. On tick over it surges and pops and all adjustments that i have done have not managed to eradicate these problems. Any ideas, I want to keep the bike as original as possible

Hi guys. A mate at work has just purchased a James 197 off fleabay.The engine was stripped and has been rebuilt but may need a re bore.When they attempted to rebuild the top end it would appear That the oil ring is missing.So can anyone help source a ring set for this bike. The only issue is that its an AMC engine.I have been told these are not worth bothering with due to many issues.So would he be better sourcing a Villers engine to fit instead?

I’ve just acquired a nice set of 32mm yokes for my BSA project, I’m now after a pair of forks to suit Anyone know what bikes had 32mm good forks fitted?

From Dirt Bike Rider magazine March 1987 Admin edit: Content removed. Breach of copyright.

Further to my post regarding the Cub oil return mod, I have now started stripping the engine to find a cause for the smoking. The engine was built from bits and pieces and put in my spare frame for my Son to ride. It starts and runs ok. He entered its first trial and almost completed the first lap with no issues. It then started smoking badly on tickover so we retired the bike. I carried out a number of the usual mods when I built it including adding a blind camshaft bush and putting a large breather in the unused distributor hole, Alpha big end, etc etc. I also fitted a new (later type) oil pump. I measured the clutch and gearbox oil when I removed it …

Hi, Recently retired so am relatively new to old bikes. Just finished rebuild on !961 B40 which took 18 months. My question is regarding the oil feed to the rockers. It would appear they are not pressure fed due to returning oil pressure being vented into the tank. It obviously works but should I put in a pressure relief valve on the tank return to ensure a pressured feed to the valve gear.

Hi I have just modified my Cub to run with PVL ignition, I set it up to Serco's initial figure of 3mm BTDC, it starts and ticks over much better now, though it seems lumpy and backfires abit at higher revs, I haven't tried it out in anger yet, just in the garage for short bursts to keep the neighbours sweet. Has anyone any info on timing set up, my cub is standard 199cc with standard cam and compression ratio. I will ride next sunday in a club trial and see how it goes. Any info appreciated. Triton

Hi Folk's Looking to get a couple of air boxes made for the trials bikes, greeves and james, to help with the breathing etc. Anyone got any contacts for people who do this provide kits etc. Cheers Steve.

Bought a T20 cub, want to optimise it, but it should still be a pre 65, not a Twin shock with old engine.... What are youre experiences with the fork, oil, springs, modified interials ? Rear shocks in which lenght ?

Can someone help please how do you remove the gearbox sprocket on a tiger cub. Sounds simple. Have removed clutch casing, duplex chain and sprockets and now cannot see a method apart from removing the gearbox from kickstart side. I believe that there is a mod to the clutch side crancase casing to make this easier, has anyone got this ?. bike is later engine with distributor. thanks in advance.

Im needing to put a bantam engine together and i have some questions to help me just in the right direction, this is not a open cheque book build so no stupid suggestions but i have a set of 175 crank cases, a 175 barrel and piston, a 125 (i think) complete bottom end with a loose 125 head and barrel/ I was hoping the 125 bottom end internals would fit into the 175 crank cases so i can make it a 175 using the 175 barrel and reboring it to suit the TS175 piston that seems popular, my questions are will this work, is there any other mods to consider and im told i can use a montesa 200 head (as i dont have a 175 BSA one), is this a striaght swap? Whats the main advantage o…

Had a great outing on my 1960 Scottish. I love the looks from folks on modern bikes. Be safe out there Mike

Hello does anybody know where I can get the drawings/dimensions for a Ariel HT 1954 rigid frame, I have found a website which mentions Jim Susan's Bikecraft and it says he has retired. I have attached a picture

If anyone knows of any Ariel engine building specialists, can they please send me a message with their contact details? Thanks

I have a BSA B40 running tiger cub wheels could anyone please tell me when they do the conversion do they use the B40 chain and sprocket or the tiger cub? It's running a DID428 chain. Many thanks

Help! Just bought a 250 Greeves. Bike's in Scotland. Need assistance to collect it! Seller is willing to take the Greeves to Kinlochleven during SSDT week for collection by anyone who's up there from down south. Would be more than willing to contribute to petrol and transportation costs - ideally to Gordon Farley's in Guildford (who would give it a checkover etc.) but anywhere south would do (I could then arrange delivery to GF's). Does anyone have space on their trailer or van?