# Rollerblade Hydrogen wheels 100 mm / 85A, white/lime (8 pcs)

Rollerblade Hydrogen 100 mm / 85A (8 pcs) are white/lime wheels for skates with four-wheel frames that take a 100 mm diameter. Eight wheels are enough for both skates in a 4×100 mm layout, chosen for marathon setups and for upgrading older frames for speed skating. The American high-rebound 85A polyurethane rolls well over long distances.

- Price: 499.99 PLN
- Brand: Rollerblade
- Availability: temporarily unavailable
- EAN: 8050032078234
- Page: https://bogdanca.pl/en/rollerblade-hydrogen-wheels-100-mm-85a-white-lime-8-pcs.html
- As of: 2026-10-23

## Who it’s for

- You are building your own marathon setup on a 4×100 mm frame and need a set of wheels.
- You have older speed skates on 100 mm wheels and want to refresh them with a new set.
- You prefer to stand lower to the ground than on 110 or 125 mm wheels, because you value lateral stability on long routes.

## When to choose something else

- You have 3×100 mm three-wheel skates — the [set of 6](https://bogdanca.pl/en/rollerblade-hydrogen-wheels-100-mm-85a-white-lime-6-pcs.html) is enough for you.
- Your four-wheel frame is built for 110 mm — see [Hydrogen 110 mm / 85A (8 pcs)](https://bogdanca.pl/en/rollerblade-hydrogen-wheels-110-mm-85a-8-pcs.html).

## Key features

- **Hydrogen high-rebound compound** — Springy polyurethane absorbs the micro-vibrations of rough asphalt and does not lose the speed you build up with your push-off.
- **85A hardness** — The tread keeps its profile for a long time, and grip on asphalt is predictable.
- **100 mm diameter in a 4×100 layout** — Your foot sits closer to the ground than on 110 or 125 mm wheels, so balance is easier and the muscles around the ankle tire less.
- **Set of 8** — You replace all the wheels on a pair of four-wheel skates at once, so they wear evenly from the start.

## Specifications

| Specification | Value |
|---|---|
| Brand | Rollerblade |
| Model | Hydrogen |
| Diameter | 100 mm |
| Hardness | 85A |
| Quantity | 8 (set for a pair of four-wheel skates) |
| Material | Hydrogen polyurethane, high rebound |
| Intended use | speed and long-distance skating on 4×100 mm frames |
| Colour | white/lime |

## In the box

- 8 Rollerblade Hydrogen 100 mm / 85A wheels

## Questions and answers

### Which frames does the set of 8 fit?

Four-wheel frames that take 100 mm wheels (4×100 mm layout). Eight wheels is a full replacement for both skates.

### What does 4×100 mm give me compared with larger wheels?

A lower centre of gravity. Your foot is closer to the ground than with 110 or 125 mm wheels, which improves lateral stability and takes strain off your ankles, while rolling over long distances remains good.

### Will 85A work on a worse surface?

Yes. Hydrogen polyurethane has high rebound, so the wheels absorb the micro-vibrations of rough asphalt and do not lose the speed you have built up.

### Can I use 8 wheels on three-wheel skates?

You can, but you will be left with two spare wheels. There is a separate set of 6 for the 3×100 mm layout.

### Can I return the wheels?

Yes, you have 14 days to withdraw from the contract (return) without giving a reason. 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.