Hmm that’s a nice price.

There are some really nice options with crazy price tags. I’m not opposed to bling but not yet 😜.

The Trailcraft are on sale currently at $159 + postage HERE

But Bearback’s VPace mention looks similarly priced and would get here quicker and possibly be cheaper overall. HERE Less choice on lengths though and the 155mm is boost if I read the description right

I’m very tempted to order the Trailcrafts for my lad – I’m a big advocate of shrt cranks and can imaine him able to use the 140s for a while yet even onto a 27.5.

Short Cranksets

https://thebikedads.com/kids-cranks/

HUP Kids Cranks: Children's Short Cranksets (104bcd 4-bolt) Narrow Q-Factor

https://www.frogbikes.com/Crank-Set-127mm-MTB-62

Alloy 24mm Short Crankset-155mm

https://velotechservices.co.uk/v1.asp?prd=234117&cat=1063

https://www.ebay.co.uk/itm/275400914970?hash=item401f2c781a:g:nfoAAOSwqJxi36xI&amdata=enc%3AAQAHAAAAoI2jKVH8t3R81CplEJgRj0%2FRqdrLvrzNqNMBIJBHHRyqq3CNFcq%2Bw3szLHWP1gbjLFbe3WufXUhUzAw8dMxwmdB4L1l3061ObLN1knWuShNuiW5ksBVWRgAaRKDY7H4kcww8OUB30spwysfaPWX6dI%2BBOrecccyDgk6qnbGcQYgdXEKKlObiKVSSKZEOSksXdqTnSbtH3BJq%2FEdmc2jSAcI%3D%7Ctkp%3ABk9SR-yW2riUYQ

https://www.ebay.co.uk/itm/254987192843?hash=item3b5e6bca0b:g:9SwAAOSwBjJgp7rz&amdata=enc%3AAQAHAAAAoGw8OtSZMbgXN%2FGf0kBujBflieqIOEZ6Uv3Mz25PkEeOU6zbIsIPcnhk2dblH06MpQyWVKDlR%2F5PhQ42EtZOpr%2Fby7dYbAqAb5CM8LXLXsyMbfmCFTXm5AKFixdq9X4JCwHd7RuMokgZNXn6CHsGfpGLhkCy9Wm0Lj8GAxjBr13YnSvp5gKjD1Ke%2FTfgy3xxCCr88X6C0SdciuffbL3bVag%3D%7Ctkp%3ABk9SR-yW2riUYQ

https://www.ebay.co.uk/itm/352927900544?hash=item522c246380:g:XHYAAOSw0lhjaRbI&amdata=enc%3AAQAHAAAA4Lx0hY%2BtvkoUfbxu90jg5z6m9BlhsQ4fMkfNu1ttER9dbStcyC7VYU6XEheqPAE7LHzarrTQGFOlFs%2Fnrv0ao7oXmkb4GjMZBQHcZ1W%2BR%2FlV4iX%2BZPVU%2BZwyOaSIHkrzt9oHjbzbvdKT1jvLy%2FNDWWre1%2FsNp%2Bq7fEm8xwuUwV%2FQtNQoFXuOktcYhYOHkKcP3YOnqiq7oeABsN20JZT%2BFAflqW3g21niPc0XRAXlf4clWH45V0qNSDv1LHl4TyvqjYUoIlyCorJGNdTmqntuo19KWc%2FuQQ4xhbFLYaQu6hKE%7Ctkp%3ABk9SR-yW2riUYQ

https://www.ebay.co.uk/itm/183794074614?hash=item2acafb03f6:g:GhEAAOSwHr1eV6Ta&amdata=enc%3AAQAHAAAAoFEDTp%2FGZ9rUwSo%2FgF6l18%2B4Qty4byzLfI2xiRTgdCyRlzDWbXUrkOfWW3KI0s30YZgFB7num30mM%2FReYezasw9qSWHuRpKOu6Le7irW6h36TCERlBkPk9VoMRwlMhjTYkcWzz00R9n6H3ImWrhRySHFWCWMaXhEDdmp%2BtbJeEELBVfQB4Ni50ZdUVSh%2FOPhxy%2BRXVeuIc3sMvVzwgfDUu4%3D%7Ctkp%3ABk9SR-6W2riUYQ

https://www.ebay.co.uk/itm/115569787179?epid=9030763153&hash=item1ae87f012b:g:Qn4AAOSwBIFjThME&amdata=enc%3AAQAHAAAAoJClFxsh2oWjcbV44BVD09ReZqthYqgcGcT7Fikm5KNM93P3zN%2BF%2BylAVZRRQepGB0di3A62Az9zMV7HyI8oWPz6lSW3XiouoJ6d4nbiSQoWZqQfGCPewlSF2znQYsxnKhKydhnNUZLTVsIAWKxLxjO3HGFCMtWMfxDaJPTu1zjpmavOa4w%2FdRaLjk8BPIUSxuQEYlki3IZKy48vNwxcPTo%3D%7Ctkp%3ABk9SR_CW2riUYQ

https://www.ebay.co.uk/itm/394114901354?hash=item5bc314256a:g:7dMAAOSwDntiqKbM&amdata=enc%3AAQAHAAAAoImlUaFyLHHvdnNbGnuXpw9d8t%2FJoJObu6PRu4QNzlNj3nbXsmytz8H6Id6bvcVl4hl7VZRlUr%2Bo1dnKPSWbWlcN4bx2LOmYnpA5P3XQbJi6w06LyxgqfjdzhMbZx0WTKyZW2%2Fez3wU2Ev3YWLQdyYQIsSKRtnH5vZ6sIlSGUDjyZEj6%2Bl9kH5eA%2B3uY7bzekurCArGOBUJb9qojYNz8WS4%3D%7Ctkp%3ABk9SR4S28biUYQ

https://www.ebay.co.uk/itm/155190107816?hash=item24220d1ea8:g:PZgAAOSwPS9jOshb&amdata=enc%3AAQAHAAAAoFizNkHMD85pSdZ1BSE33NVS7FxN%2BvO7aCJpw8AWQ6S%2FDX1FwNvNz%2BX0T8n6gdMK4QB5U81WQ29faGXSMUmSWe4Up4KK4VNcR9eV9Ovt927QIBcVPx8oXa2AezLzuheiM3UTsvn8zCBcfKXhkZsikYPe2ffJj3%2FmOmmT4w8YLJa26NDnSAkfdQmBDjifemtsN97S4phduxzcLbVEsbExToA%3D%7Ctkp%3ABk9SR4q28biUYQ

https://crucialbmxshop.com/racing-bmx/parts/drivetrain/cranks

Cranks

Jet BMX Square Taper Race Cranks

https://crucialbmxshop.com/sinz-expert-square-taper-bmx-race-cranks

https://crucialbmxshop.com/box-five-square-taper-cranks

https://www.urbanair.co.uk/index.php?route=product/product&product_id=1238

https://www.americancycle.com/product-category/cranks-bmx/crank-arms/

https://greenmachinebmx.com/product-category/bmx-race/cranks-bmx-race/

Thanks for that @Paton hadn’t seen some of those, though don’t BMX cranks have a slightly different chainline offset to MTBs?

The Cruz cranks just arrived from aliexpress. 600g for 160mm. Came with a bottom bracket which is smooth on one side and notchy on the other. But I only got that as it’s cheap.
I’ll dig out a gxp ring and hopefully fit it tomorrow. Looks ok though. The back of the cranks are machined out, there’s nothing really trick about them.

There is a linked item from the Cruz cranks where they do lengths starting at 89mm!

BMX cranks give plenty of choice, but some experimenting with BB axle length might be needed.

https://b2bike.us/bombshell-rocket-slr-sq-cranks-new-2018.html

But dont use the aluminium BB axles.

maybe 115 or 118mm