Fiend Shapeshifter Frame 320CS - Corsa Red
- Regular Price
- £399.99
- Sale Price
- £399.99
- was
- Unit Price
- per
Designed alongside the Fiend pro team, the Shapeshifter BMX frame is built from heat-treated 4130 chromoly to withstand heavy street abuse. Featuring double-butted tubing and reinforced top and down tube gussets, this aftermarket BMX frame delivers maximum strength where you need it most.
Engineered with responsive street geometry, it features a short 12.75" (320mm) chainstay with single-bend stays, a heat-treated Mid BB, a gyro-ready head tube, and 8mm investment-cast dropouts with integrated chain tensioners. Finish it off with flush-mount removable brake lugs and an integrated seat clamp for a clean, reliable setup.
Frame Specs & Geometry:
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Top Tube: 20.5″, 20.75″, 21″, 21.25″
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Head Tube Angle: 75.5° (Gyro ready)
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Seat Tube Angle: 71°
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Chainstay: 12.75″ (Slammed)
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Standover: 9″
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BB Height: 11.625″ (Mid)
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Weight: 5.1 lbs (20.5″)
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Note: Seat stay brake mounts (hardware sold separately)
Choose standard or Express next day delivery.
We only ship on weekdays. Standard delivery service 2-4 days. Express service is next working day (if ordered before 2pm)
Orders under £50 are £3.95
Orders over £50 are Free (except a few special/heavy items)
- We will do our best to ship all ‘in-stock’ orders that are placed before 2pm on the same day (excludes weekends).
- Highlands, Islands and off-shore UK destinations should allow extra time because of their remote locations.
- All orders placed during the weekend will be dispatched the following working day.
Express next working day delivery is £7.95 available on parts orders placed before 2pm on weekdays.
Bikes and some other large/heavy items are charged at £9.95 standard delivery or £12 for express next day shipping (UK mainland exc saturdays and scottish highlands). Express orders placed after 2pm on a Friday will ship on the Monday (excluding bank holidays)
Orders that combine bikes and parts will be charged a combined shipping charge stacking both charges.
TRACK & TRACE
All UK orders are dispatched with Royal Mail, DPD or Fedex and can be fully tracked & traced online.
UNWANTED ITEMS
If you're ordered something and it's the wrong size or fit then that's no problem - you have 90 days from purchase to return it. Simply drop us an email with your order number and which items you wish to return and we will provide you with an RMA number. Items need to be returned at your cost unused with all original packaging.
MISSING, FAULTY OR DAMAGED ITEMS
Please contact us within 2 days of delivery listing any missing or damaged items.
Before returning any items you must first contact us to obtain an RMA (Return Merchandise Authorisation). The RMA will help us to speed up the return process.
WARRANTY
Please contact us directly to find out the warranty policies for specific brands and products as these may vary from product to product. When contacting us regarding warranty issues please include pictures to assist the return procedure.
RETURN ADDRESS: Backyard Returns, c/o Seventies BMX Distribution, 51 Woodland Vale Road, St Leonards on Sea, East Sussex, TN37 6JJ
Email: info (at) backyardbmx.com
Phone: 01424 857239
What size BMX bike do i need?
The below is an average recommended size for each height range but remember it is just a guide. We know tall pro riders that ride shorter top tubes than the guide, and we know shorter pro bmx riders who prefer a longer top tube compared to the guide. Size should be chosen based on your height, your skill level, your riding style, and your personal preference. However if you are starting out then the below guide should give you a good idea of the size bike that you'll want to start with.
Complete BMX bike sizing guide.
Recommended top tube lengths for 20" Wheel bikes:
19" top tube - Rider height of 145cm – 155cm / 4 feet 9" - 5 feet 1"
20" top tube - Rider height of 150cm – 160cm / 4 feet 11" - 5 feet 3"
20.25" top tube - Rider height of 155cm – 165cm / 5 feet 1" - 5 feet 5"
20.5" top tube - Rider height of 160cm – 170cm / 5 Feet 3" - 5 feet 7"
20.75" top tube - Rider height of 166cm+ / 5 Feet 5.4" +
21"+ top tube - Rider height of 172cm+ / 5 Feet 7.7" +
Once you know your size, browse our complete BMX bikes or explore BMX frames if you're looking to build up a complete setup.
What size BMX do i need for my child?
When choosing a kids BMX bike it is generally safer to go with a correctly sized or slightly smaller bike as they will have more control over it than a bike that is too big and they are over extended. If your child is a confident rider and is growing fast you may wish to go bigger. This is just a guide and you know your child's ability.
Recommended height for kids BMX bikes - 12" to 18" Wheel bikes:
12" wheel bike - Rider height of 90cm – 115cm / 2 feet 11" - 3 feet 9"
14" wheel bike - Rider height of 110cm – 128cm / 3 feet 7" - 4 feet 2"
16" wheel bike - Rider height of 120cm – 138cm / 3 feet 11" - 4 feet 6"
18" wheel bike - Rider height of 132cm – 150cm / 4 feet 4" - 4 feet 11"
Alongside these overall rider heights we would suggest that the following inside leg measurements are taken into account to ensure they can stand happily over the top tube of the bike.
12" Wheel pedal bike 43cm / 17"
14" Wheel bike 50cm / 19.75"
16" Wheel bike 56cm / 22"
18" Wheel bike 60cm / 23.5"
20" Wheel bike 67cm / 26.5"
Ready to find the right bike? View our full range of complete BMX bikes.