Hirsty Posted October 4 Share Posted October 4 I bought a Dragstar 1100 Trike which I've put a lot of time and money into but I get a massive tank slapper at low speed. Pulling away is fine if I'm getting up speed and slowing down is fine until I get below 15mph then I have to grip tight which stops the slapping. When cornering at any speed I get a kind of scraping, grinding sound. I'm mechanically minded engine and electrical wise but this has me beat. The seals on the forks are good, I've had the tyres off the rear end and checked, balanced up and re valved, they're new tyres. The front tyres not that old and in good shape. There's no play in the steering at all and everything is tight. Any ideas on what could be the cause please, as I said it's beaten me? Thanks........ Quote Link to comment Share on other sites More sharing options...
Moderator Snakebite68 Posted October 4 Moderator Share Posted October 4 7 hours ago, Hirsty said: When cornering at any speed I get a kind of scraping, grinding sound. Can you tell roughly where the noise is coming from? Particularly front or back? If it's back, I'd check the differential first then the drive shafts second. If it's front, I'd check the wheel bearings/spindle. As for the tank slapping, if the bike is still level (not raised or lowered at the back due to the conversion), all I can think of is check your front brake callipers, maybe one is playing up? I've split your two identical posts into separate ones... Quote Link to comment Share on other sites More sharing options...
NE0 Posted October 4 Share Posted October 4 interesting video here, especially about suspension and preload. might be worth a look. https://www.youtube.com/watch?v=IzXE32thS1g Quote Link to comment Share on other sites More sharing options...
Hirsty Posted October 5 Author Share Posted October 5 17 hours ago, Snakebite68 said: Can you tell roughly where the noise is coming from? Particularly front or back? If it's back, I'd check the differential first then the drive shafts second. If it's front, I'd check the wheel bearings/spindle. As for the tank slapping, if the bike is still level (not raised or lowered at the back due to the conversion), all I can think of is check your front brake callipers, maybe one is playing up? I've split your two identical posts into separate ones... Easy bud thanks for your response, I'm new to this and not exactly computer savvy being an early 60s child. The noise is coming from the front wheel and I've checked everything which is tight and working as it should. The noise is only when cornering whilst at speed over 20mph. Its sounding like a bearing now you mentioned it. I'll take the wheel off over the weekend and get it looked at next week, thanks again for your time and help buddy it's greatly appreciated. 14 hours ago, NE0 said: interesting video here, especially about suspension and preload. might be worth a look. https://www.youtube.com/watch?v=IzXE32thS1g Thanks for your help and time bud, it's the morning after so I'll give it a watch when my heads straight, again thanks.... greatly appreciated... Quote Link to comment Share on other sites More sharing options...
Moderator Snakebite68 Posted October 5 Moderator Share Posted October 5 1 hour ago, Hirsty said: I'm new to this and not exactly computer savvy being an early 60s child. No worries, I'm late 60s... Just picture it as a normal conversation that takes a really long time to get an answer to (and sometimes not at all and you have to give us a poke!). lol Quote Link to comment Share on other sites More sharing options...
Moderator Snakebite68 Posted October 10 Moderator Share Posted October 10 On 10/5/2024 at 1:07 PM, Snakebite68 said: No worries, I'm late 60s... I'm going to clarify that... I was BORN in the late 60s..! lol Quote Link to comment Share on other sites More sharing options...
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