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Motor retainers

You need a system to retain your motor in it's mount. Some motor mount kits will include this, however some won't and if you're making your own from some motor tube you will need to ensure the motor doesn't escape (either way).
A thrust ring at the front of your motor tube, and a retaining system at the rear should work great.
You can choose engine hooks that hold the motor in place, or motor retainers that screw into place. 
You can even make a 29mm mount and use adapters to have the option of using both 24 and 29mm motors too, although this will add some weight. 

18mm thrust ring, 6 pieces
0.0
8054
Stock: 11 item(s)
£3.44 £2.87
Engine mounting brackets, 6 pieces - 68mm - AD
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8055
Stock: 7 item(s)
£3.44 £2.87
24mm motor retainer set - Estes
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D-ES9751
Stock: 20 item(s)
£7.63 £6.36
24mm thrust ring, pack of 3, 23.8mm OD / 18.6mm ID
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502424011
Stock: 17 item(s)
£2.83 £2.36
18mm Engine retainer set (3 pack) Estes
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D-ES3187
Stock: 1 item(s)
£6.62 £5.52
24mm Aluminium Motor Retainer
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BCR-RETAINER-24
Stock: 6 item(s)
£17.92 £14.93
95mm heavy duty engine hooks (4mm x 0.9mm profile) - Pack of 3
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MRS-HOOK-95x3
Stock: 9 item(s)
£7.99 £6.66
£12.78 £10.65
29mm Aluminium motor retainers anodised red Blackcat rocketry
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BCR-AMR-29
Stock: 2 item(s)
£22.24 £18.53
£4.79 £3.99
Z CLIP MOTOR RETAINER SET
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MR-1
Out of stock
£9.76 £8.13
29mm HAMR Retainer SET - Motor retainer for 29mm motors
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HAMR-29-SET
Out of stock
£41.89 £34.91
29mm LOC Pro motor retainer machined aluminium
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LOCPROMR29
Out of stock
£35.69 £29.74
29mm Motor retainer set Estes
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D-ES9750
Out of stock
£8.12 £6.77
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