Orbea Oiz M21 Mountain Bike 2025 - XC Full Suspension MTB
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Orbea Oiz Carbon OMR, Fiberlink, Boost, BSA, SIC, UFO, I-line shock |
| Fork | FS SID SELECT 3 POSITION CHARGER RL REMOTE 29" BOOST 15X110 MXL STEALTH DEBONAIR 120MM GLOSS BLACK 44MM OFFSET 1.5" TAPER D1 |
| Rear Shock | RockShox SID Luxe Select+ 3 position120mm 190x45mm |
| Headset | Alloy 1-1/2", Black Oxidated Bearing |
| Stem | OC Mountain Performance MP21, -6º |
| Bars | OC Mountain Performance MP30, Width 760 |
| Front Brake | Shimano M6100 Hydraulic Disc |
| Rear Brake | Shimano M6100 Hydraulic Disc |
| Rear Mech | SRAM GX Eagle Lunar |
| Shifters | SRAM GX Eagle Lunar |
| Speed | 12 |
| Rims | Oquo Mountain Performance MP28PRO, alloy hookless rim, DT370 6IS hub, 28mm internal width, Sapim Race spokes, 29" |
| Front Tyre | Maxxis Rekon Race 2.40" WT 120 TPI Exo TLR |
| Rear Tyre | Maxxis Rekon Race 2.40" WT 120 TPI Exo TLR |
| Seat Post | OC Mountain Control MC21, 31.6mm, Dropper |
| Saddle | Fizik Vento Argo X5 Alluminium 140mm |
| Chainset | SRAM GX Eagle Dub Lunar Boost 32t |
| Chain | SRAM GX Eagle 12-Speed |
| Cassette | SRAM XG-1275 Eagle 10-52t 12-Speed |
| Pedals | Resin Platform |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Orbea Oiz M21 Mountain Bike 2025 - XC Full Suspension MTB
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When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
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