# Flyke Neutrino Racing Frame skate frames 4 × 90 mm

Flyke Neutrino Racing Frame 4 × 90 mm frames are 276 mm long and have a reinforced 6061-T6 aluminium frame. The 150 and 165 mm mounting fits most freeskate, urban and fitness boots. The short wheelbase makes turning easier, and 90 mm wheels add speed and comfort. The set includes 8 axles and 8 spacers. Good for younger skaters and for skate cross.

- Price: 499.99 PLN
- Brand: Flyke
- Availability: in stock, ships within 24 h
- Page: https://bogdanca.pl/en/flyke-neutrino-racing-frame-skate-frames-4-90-mm.html
- As of: 2026-10-23

## colour.

- Black

## Who it’s for

- You skate on 4 × 80 mm and want more speed and comfort without giving up agility.
- You have a smaller foot or are buying frames for a teenager who trains speed or skate cross.
- You skate urban, freestyle or fitness and are looking for one universal set-up.

## When to choose something else

- Your boot has a 195 mm mounting — this frame has 150/165 mm mounting; see the [Neutrino 4 × 100 mm](https://bogdanca.pl/en/flyke-neutrino-racing-frame-skate-frames-4-100-mm.html) with 165/195 mm spacing.

## Key features

- **4 × 90 mm set-up** — More stability and speed than 4 × 80 mm, with still good manoeuvrability.
- **276 mm length** — A short wheelbase turns in easily and suits smaller feet.
- **Reinforced 6061-T6 aluminium** — A stiff frame withstands the loads of jumps, skate cross and intense city skating.
- **150 and 165 mm mounting** — Fits most freeskate, urban and fitness boots, including FR Skates, Rollerblade, Powerslide, Micro and Flying Eagle.
- **8 axles and 8 spacers included** — A set to fill two four-wheel frames — you only add wheels with bearings.

## Specifications

| Specification | Value |
|---|---|
| Brand | Flyke |
| Model | Neutrino Racing Frame |
| Wheel set-up | 4 × 90 mm |
| Length | 276 mm |
| Mounting | 150 mm and 165 mm |
| Material | reinforced aluminium 6061-T6 |
| Compatibility | freeskate, urban and fitness boots with a 150 or 165 mm mounting (including FR Skates, Rollerblade, Powerslide, Micro, Flying Eagle) |
| Included | 8 aluminium axles, 8 spacers |
| Intended use | city skating, freestyle, skate cross, fitness |

## In the box

- Flyke Neutrino Racing Frame 4 × 90 mm frames
- 8 aluminium axles
- 8 spacers

## Questions and answers

### Will the Neutrino 4 × 90 mm frames fit my skates?

Yes, if the boot has a 150 or 165 mm mounting — most freeskate, urban and fitness boots do. Measure the distance between the centres of the mounting holes or come with your skates to our shop in Poznań or Wrocław.

### How does 4 × 90 mm compare with 4 × 80 mm and 4 × 100 mm?

It sits in the middle. 4 × 80 mm gives the most agility, 4 × 90 mm more stability and speed with good manoeuvrability, and 4 × 100 mm the most speed and smoothness at the expense of responsiveness.

### Are these good frames for a teenager?

Yes. The short 276 mm frame works well for younger skaters who train speed, skate cross or skating technique.

### Are axles and spacers included?

Yes: 8 aluminium axles and 8 spacers, four of each per frame. Wheels and bearings are not included.

### Can I return the frames if they do not fit my boots?

Yes, you have 14 days to withdraw from the contract (return). The buyer covers the return shipping.

## Buying

- Delivery: from 15.00 PLN, in-store pickup in Poznań and Wrocław free of charge
- Returns: 14 days
- Seller: Bogdanca Sp. z o.o.