Jett
Origin
Specialized launched the Jett kids' bike line in 2021 as its answer to the premium lightweight kids-bike specialists (woom, Frog, Prevelo, Cleary) that had, for years, out-designed the big brands on fit and weight. Rather than simply shrinking an adult frame, Specialized ran its Retul body-scanning tool across children's proportions and found that conventional kids' bikes had cranks that were too wide, cranks too long, and handlebars set too high - opening the shoulder angle and hurting control. The Jett was engineered around that data: a light A1 butted-alloy frame, a narrow Q-factor so small feet sit closer together, narrow grips and short brake levers for small hands, and a low standover. Its headline idea was longevity - roughly 30 months (three summers) of growth built into one frame via dual-hole cranks, a long seatpost and adjustable bars, so a family buys fewer bikes as the child grows. It sat below the off-road Riprock in Specialized's kids range as the do-everything urban/light-trail option. The line appears to have been quietly wound down around 2024-2025, making it primarily a used-market bike today.
Specifications
- Frame
- A1 Premium Butted Alloy (aluminium), unisex, internal cable routing, replaceable derailleur hanger
- Weight
- kg
- Drivetrain
- Varies by size: 16" single-speed; 20" single-speed or 7-speed; 24" 8-speed. Geared builds use microSHIFT trigger shifter + Shimano/Sunrace rear
- Brakes
- Dual hand V-brakes (rim) with reach-adjustable short levers; no coaster brake even on 16"
- Wheels
- 16", 20" or 24" depending on size
The verdict
- Light for a big-brand kids' bike - easier for small riders to handle and lift
- Genuinely thoughtful kid-specific fit (narrow Q-factor, small controls, low standover) via Retul data
- Built-in growth room (dual-hole cranks, long seatpost, adjustable bars) stretches usable life
- Premium price when new; adjustability doesn't extend fit as dramatically as marketing implies
- Flimsy-feeling brake reach adjusters and large levers that encourage full-hand braking
- Urban/light-trail only - not built for aggressive off-road, and now discontinued so support/parts are thinning
Generations
Jett 16
- Entry size (~4-7 yr). Single hole crank, no dual-position adjust; still gets two hand brakes and no coaster.
- Wheels
- 16"
- Brakes
- Dual V-brakes
Jett 20
- Middle size (~6-9 yr). Dual-hole cranks. The 7-speed geared build is the sweet spot for varied terrain.
- Wheels
- 20"
- Brakes
- Dual V-brakes
Jett 24
- Largest size (~8-12 yr). Slightly more relaxed geometry (higher stack:reach); dual-hole cranks; only sold geared.
- Wheels
- 24"
- Brakes
- Dual V-brakes
Versions & builds
Every official build side by side — differences highlighted.
| Spec | Jett 16 Single Speed | Jett 20 Single Speed | Jett 20 (7-speed) | Jett 24 (8-speed) |
|---|---|---|---|---|
| Year | 2021 | 2021 | 2021 | 2021 |
| Drivetrain | Single-speed | Single-speed | 7-speed, microSHIFT trigger | 8-speed, microSHIFT trigger |
| Brakes | Dual V-brakes | Dual V-brakes | Dual V-brakes | Dual V-brakes |
| MSRP | €380 | €430 | €470 | €550 |
| Purpose | Value | Value | Balanced | Flagship |
Tags
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