Uncle Jimbo

mtb1699–3896 EUR

Origin

2013. The Uncle Jimbo was ROSE's flagship enduro/trail full suspension bike through the golden era of the enduro category (2013–2019). It competed directly with Canyon Spectral, Giant Trance, YT Jeffsy and similar direct-sales enduro bikes. The name was deliberate — quirky and memorable in a world of generic model names.

Specifications

Frame: 6061 aluminium hydroformed; Horst-link four-bar suspension (rocker on seat tube from 2015). Press-fit (some threaded) BB, 12×142 mm bolt-thru rear with integrated derailleur hanger, 15×110 mm front, ISCG05, internal routing, downtube protective tape. Discontinued ~2020 (replaced by Root Miller)
Weight: kg
Drivetrain: SRAM X01 Eagle 1×11/12 (top) / Shimano Deore-SLX or RaceFace 2×10 (entry)
Brakes: SRAM Guide RSC or Magura MT5 4-piston hydraulic disc
Wheels: Mavic Crossmax / E13 TRS+ / Spank Spike (by trim); 27.5" (2015+), 12×142 mm

The verdict

+Strengths

Enduro MTB 2016 'Best Value' award: '14.45kg at €2,332 — plush suspension, huge reserves, predictable'
Pinkbike: 'I genuinely don't believe there is another bike company on the planet that can compete with the value'
Balanced trail character: 'Achieve difficult balancing act between nimble agility and optimal stability' (Enduro MTB 2015)
Short 431mm chainstays: direct steering response, compact feel
Online configurator: custom fork/shock/drivetrain upgrades at point of purchase
Integrated thru-axle with derailleur hanger: neat engineering detail
Clear protective tape on downtube: practical damage prevention
Enduro MTB 2015 'Chapeau!': 'A serious competitor on racing circuit and on many wish lists'

−Weaknesses

Cable/chain noise persistent across generations: frame rattle (Gen 1) → fixed (2016) → chain clatter (2017)
No bottle cage mounts — hydration pack mandatory
Enduro MTB 2017: 'Not for tearing down trails — look elsewhere if you're after a speed demon'
27.5" wheels — now superseded by 29" in trail/enduro category (Root Miller corrected this)
Geometry became conservative vs modern standards by 2019 — 66° HTA less slack than modern enduro norm (63–65°)
Enduro MTB 2016: 'Dual Position Air on Yari is unnecessary — front wheel doesn't lift anyway due to steep STA'

Did you know

01Enduro MTB Magazine named the Uncle Jimbo 1 'Best Value' in a 10-bike trail/enduro group test (2016) — beating Canyon Spectral, Commencal, Giant Trance
02The name 'Uncle Jimbo' was one of the most recognisable in direct-sales MTB — frequently mentioned as a reason people bought ROSE bikes
03Moving the rocker link from top tube to seat tube in 2015 was a clever design move — improved standover height AND anti-squat simultaneously
04Integrated derailleur hanger in the thru-axle design (2015) was a neat detail: 'shows good attention to detail' (Pinkbike)
05No bottle cage mounts due to shock placement — one of the most common criticisms and a practical consideration for trail riders
06The ROSE configurator was heavily used with Uncle Jimbo — custom builds were common, making it one of the earliest widely-configured direct-sales enduro bikes
07Pinkbike user review: 'I genuinely don't believe there is another bike company on the planet that can compete with the value of this bike.' (2015, Uncle Jimbo 1 under £1,500)
08Cable rattle was the consistent Uncle Jimbo criticism: Gen 1 (2014) rattled, 2016 fix eliminated frame rattle, 2017 had chain clatter — ROSE chased the noise across generations
09Uncle Jimbo 3 (2015) at 13.35kg with full RockShox Pike + Reverb + X01 + Mavic Crossmax was genuinely extraordinary for the era