golf trolley only goes full speed

I tried replacing the speed control switch in order to fix my problem and on turning it steady it still suddenly lurches forward at max speed
There’s no incremental increase in speed. Could you advise, please?

Speed Control Switch
Speed Control Switch


Ah, This is not always a straightforward case of the speed control switch.  Normally when the speed switch goes wrong it makes the display speed erratic, often missing speeds.  In this case when the trolley is powered up and only goes at full speed then I believe this to be the golf trolley controller at fault.  In order to match the correct golf trolley controller, you would have to check either the serial numbers on the controller (housed under the battery tray) and take the numbers from that to match the correct one on the website store  OR check the handle circuit and either send a photo to me or check which serial number and type of circuit. The website store will show which controllers go with which handle circuits. Let me know how you get on with this and I can help if you have any questions.




Thank you for getting back to me Jim, I did look on your website and have placed an order with you for S1G-8V-12vJ to replace S1G-8-12V-J the trolley has a straight t bar.  Just had confirmation it has been dispatched.


No worries, you should receive this tomorrow, which I am sure will fix your golf trolley problem.


The new controller fitted and works perfectly, Thanks.


8 thoughts on “golf trolley only goes full speed”

  1. Ludger Hasenkamp

    in mid december 2020 I bought a Ben Sayers Electric Golf Trolley. Since mid of Mai I`ve got the following problem:
    when starting the trolley by power button and speed control dial, the trolley allways starts and runs full power. Neither the speed control dial to select the preferred speed doesn`t work nor the preset distance button.
    I`m sure you have some ideas about the reason and hopefully can give advise to solve the problem. Thanks in advance.

    1. Hi,

      I would recommend a new control box. Let me know what you handle type is if you can send me a photo I can then tell you the part to purchase on my store. Email photo to
      admin @

  2. G’day my pro rider when turning on the left wheel turns on fine, but the right wheel turns on flat out cause ing it to spin around in circles any help appreciated

    1. Check your wheel is catching the axle pin if it is then a new pair of clutches are needed. Available on the spares page on the website above.

  3. Problem was on switching control to 1 it surged and jumped to full power, received a speed control from you and fitted it, still the same jumping to full power .read up on your notes. So need a new controller unit the serial number is S3D-G-USB-12v-22a-CB. 11-10-2013 No 075. Caddymatic trolley. Is it
    Possible you have a replacement. If so could you please send.

    1. I know this controller unit, unfortunately, the manufacturers have stopped making this one. The replacement is the controller box S1G-T2D3-12V-J and works with the D64286 handle circuit (see store). So if you have the old handle circuit D62145 fitted, then if using the new controller, the display numbers might not light up although the trolley will work as usual.

  4. hi i have a prorider mod number3447 with a 250 watt motor and a upgrade 14.5 volt lithium battery. the trolley started taking of on its own after being switched of on the pot and as ended up in drainage ditch up to at least the motor. I thought a new pot and device might be the answer but there seems to be a couple to choose from. the old one hard to read could be SIG12D3 12V. DOES THE COLOUR refer to the model and or the shape of the handle. any comments/help would be so welcome. tried the motor and it seems ok


    1. Normally if the trolley is powered up and ends up in water it can blow the controller and possibly the handle circuit. If your ProRider has the (coloured) winged handle then this controller is correct

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