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Yjo

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  1. Hi folks, my son was riding is OSET today and it appeared to go into limp mode (no buggy as I thought it had just over heated) but then it started make a funny noise from the motor area...I noticed that the D Link sprocket was slightly loose and wondered if was just that or if it was something more serious. I've posted videos as its easy to understand. Thanks for the advice in advance https://youtube.com/shorts/U8uOQKF3z_E?feature=share https://youtube.com/shorts/ao0R2aY6TJc?feature=share https://youtube.com/shorts/2flpOSULZIE?feature=share https://youtube.com/shorts/-kDAHr5nywA?feature=share
  2. Unfortunately Boost Bikes batteries have really let me down. As a local company I thought the serviced battery I got back was working great. It did for one charge. I charged again and it now wont charge beyond 56.6v and it dies at 53v. I contacted the guy given hed charged me £135 to service it, and he basically said tough luck, the battery is done, which doesnt make sense. Any way, I like dealing with local companies generally but unfortunately I would definitely avoid buying a Boost Bike battery
  3. For anyone else who may have had the same problem, I just changed the 13 tooth front sprocket for an 11 tooth front sprocket. With the 36v Boost battery even on my 500w 24v Oset 16 Spider, this setup makes the bike an absolute rocket ship. Highly recommended
  4. For anyone else who may have had the same problem, I just changed the 13 tooth front sprocket for an 11 tooth front sprocket. With the 36v Boost battery even on my 500w 24v Oset 16 Spider, this setup makes the bike an absolute rocket ship. Highly recommended
  5. Finally got to test the bike and it lasted way longer than it had previously. My son and I spent 2-3hr riding trails rather than trials, some at full tilt and others more slowly, anyway, I quit before the battery did and it still was stilling at 51.9v.....great job...or so I thought....next time I went out the battery was worse than ever....contacted Boost bikes and they told me tough... Which is very disappointing...
  6. Hi folks, bit of a random one here. Running an old 16 24v but using a 36v Boost battery and it was working great until the chain broke. The chain jammed and the motor made a clicking noise when then it jammed. Once cleared, the front sprocket looked like it ran perfectly. Stuck on a new chain but once any weight is added to the bike, it accelerates much slower than previously but has the same top speed (once it finally gets there). Any thoughts would be appreciated....the motor is the old 24v 500w motor, could it just be done???
  7. So I got the Boost battery back and have tested. It now charges to 58.8v. feels very slightly quicker top end than the standard battery. I didnt get to see how long it lasted but I will be able to test sometime soon. Many thanks to those who replied previously
  8. Just an update on the 48v Boost Battery. I sent the battery back to Boost Battery (who coincidently on lives an hour's drive from me). He tested it and as it was built in 2018 and he informed me that that models BMS didn't balance the battery so a few of the cells were well out of balance. He has put in a new BMS and replaced the dodgy cells so it should be back to nearly 100%. I will let you know how it performs once I get it back. It cost me £135, £80 for the new BMS, £35 or the parts and labour and £20 for delivery by DHL. Cheers
  9. Well folks, I bought an old oset off a friend without doing any research, what can I say, it was before Christmas and I was panicking! Anyway, it's the 24v 500 Oset 16 Spider but I bought a 36v Boost bike battery which certainly peps it up a little (a lot). Pretty quick top end, actually quicker than my 24r to be fair, the 24r is carrying me tho, and I'm definitely at the top end of 90kgs. After breaking small 9mm chain earlier today (I'm pretty sure it was fairly old) I was thinking of upgrading to a heavy duty sprocket and chain set (9T front and 68T rear) but I'm not sure if the sprocket will fit the front motor as it doesn't had the D shaped fitting. I've asked the retailer so hopefully they will let me know if it is available. But as this would be the same ratio as the standard I don't imagine it will increase the acceleration at all. Is there anyway to increase the acceleration? I can't find any other motor sizes available (I believe they made 600w and 750w in later models) Any thoughts appreciated...
  10. Many thanks for the advice gwhy...I'll contact Boost Bikes on Monday and see what can be done
  11. I think the the higher amp output reduces the charge time. I replied to Boost bikes with the info he required, we will see how good the backup is...
  12. Photos attached. I have contacted by Boost Bikes, and they mention IF it is an older version of the battery then it may be off balance...which could be the case....I think the battery is a 2018 so hopefully that is all it is and it will be sorted....I will let you know how it goes. Thanks
  13. Strangely, using the boost battery, my top light never flashes but I can feel the power drop under load when the battery is tired. I've never had the bike cut the power in fairness (although this could be me thinking the battery is tired...) I didn't think of the thermal cut off switch stopping the bike. I just thought it was a battery issue as both times it has run out it was reading 51 volts (which I thought should still be plenty). I read on some other forums that when using a boost battery, the leds don't function to give you the life of the battery, they certainly don't seem to on mine. I'm currently get around 6-7 on my bike but it is a mixture of fastish trail riding and some slow is downhill mountain bike sections. Next time I'm out (today hopefully) I'll just use the standard battery and see what my distance is and at least the LEDs will give me some idea of range. When I tested the standard battery and a reasonable amount of riding it was sitting at 48.8 volts and it was going well, so I am more curious about why the Boost is dying at 51, unless it as as you say the thermals... I shall report back asap
  14. **Update - Boost Bikes battery serviced the battery at a cost of £135, after one charge the battery was worse than ever and the owner has basically told me tough luck - for a £900 battery after 2 1/2 years is very poor considering the original battery is still perfroming well** Howdy folks, Recently got my Oset and it came with the Boost Battery and the original, but I am disappointed with the Boost Battery range. When fully charged it seems to get to around 56v but the bike cuts out after what I think isn't long enough given the reviews I've read online. I measured the voltage and it still at 51v? If I measure the actual OSET 48v battery, it was still preforming superbly at 48v. My question, is there a problem with the Boost Battery? I've emailed them but have not had any response? Is there anything else I should be measuring? The boost battery is 30ah so it should considerably out last the standard one. Any thoughts would be appreciated. Thanks Kirk
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