MIDDLECHILD Chromoly
There’s one in every family. That one that feels excluded from the bunch. If you’re down with that attitude because you like to go your own way, then we’d like to introduce you to the rowdiest member of the RSD family – the MiddleChild.
Some of our bikes are great at getting the job done – real authorities. The 29/27.5+ MiddleChild gets it done, but the only thing on the agenda is playtime. Every detail on this premium-quality handmade steel frame screams “skip work and let’s party!”
- double-butted, heat-treated 4130 Chromoly steel tubing
- full CNC-machined custom yoke that’ll take 2.8″ tires (or up to 2.6″ x 29)
- 64.5 degree head tube and 74 degree seat tube angles paired with 140mm fork – that aggressive geometry for both climbing and sending choice descent lines
- boost spacing and short chainstays (adjustable from 415mm – 430mm) for super stability and loads of confidence in the rough stuff
- Choose from either Duroc 40 27.5+ wheels with Nobby Nic 27.5×2.8 Addix SpeedGrip tires or Duroc 35 29in wheels with Maxxis Minion DHF 2.5 Front and Aggressor 2.5 Rear
The MiddleChild is a purely new-school ‘Enduro’ hardtail…
…that will never get left behind.
January 15th – Important Shipping Update
Despite the many and lengthy delays hampering bike industry supply chains, we have managed to complete production on the Steel MiddleChild, only to now be plagued with shipping delays. Bikes are in transit from Taiwan, but due to the immense backlog, we are now anticipating a delivery date of February 28. While we had hoped to avoid any further delays, we have learned that these circumstances are simply beyond our control, and we thank you for your patience and understanding.
- Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
- Fork: Rockshox Pike Select RC 27.5+/29 140mm 51mm
- Headset: Cane Creek ZS-44
- Handle Bar: Race Face 35mm Turbine R 780mm
- Stem: Race Face 35mm Aeffect R 50mm
- Grips: Lizard Skin Northshore
- Front Wheel: Sun Ringle Duroc 27.5x40mm Front 15x110mm Boost
- Rear Wheel: Sun Ringle Duroc 27.5x40mm Rear 12x148mm Boost
- Crank: Race Face Turbine Cinch 175mm DM
- Chain Ring: Race Face 30T Ring NW
- BB: Race Face 73mm BSA
- Chain: KMC 12spd
- Cassette: Shimano SLX 10-51T 12spd
- Rear Shifter: Shimano SLX Trigger 12spd
- Rear Derailleur: Shimano SLX Long Cage 12spd
- Brakes: Shimano SLX 4 Pistons M7120
- Rotors: Shimano SLX 180mm
- Saddle: WTB Volt Comp 142mm
- Seat Post: Race Face Turbine / KS LEV Dropper (S 125mm, M & L 150mm, XL 175mm) with SouthPaw Lever
- Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
- Tires: Schwalbe Nobby Nic 27.5 x 2.8 Addix Speedgrip
Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz
Complete Bike Weight
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless
Sizes: Sm, Med, Lrg, Xlrg
Finish: Matte Black, Turquoise & Orange
Pricing:
Complete : $2949.00 CAD / $2499.00 USD
Complete w/Dropper : $3299.00 CAD / $2799.00 USD
Frame Only: $799.00 CAD / $699.00 USD + Shipping
Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steerer tube
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp
Prices and Specs are subject to change without notice.
Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.
- Frame: 27.5+/29 Cr-Mo 4130 Double Butted and Heat Treated
- Fork: Rockshox Pike Select RC 27.5+/29 140mm 51mm
- Headset: Cane Creek ZS-44
- Handle Bar: Race Face 35mm Turbine R 780mm
- Stem: Race Face 35mm Aeffect R 50mm
- Grips: Lizard Skin Northshore
- Front Wheel: Sun Ringle Duroc 29x35mm Front 15x110mm Boost
- Rear Wheel: Sun Ringle Duroc 29x35mm Rear 12x148mm Boost
- Crank: Race Face Turbine Cinch 175mm DM
- Chain Ring: Race Face 30T Ring NW
- BB: Race Face 73mm BSA
- Chain: KMC 12spd
- Cassette: Shimano SLX 10-51T 12spd
- Rear Shifter: Shimano SLX Trigger 12spd
- Rear Derailleur: Shimano SLX Long Cage 12spd
- Brakes: Shimano SLX 4 Pistons M7120
- Rotors: Shimano SLX 180mm
- Saddle: WTB Volt Comp 142mm
- Seat Post: Race Face Turbine / KS LEV Dropper (S 125mm, M & L 150mm, XL 175mm) with SouthPaw Lever
- Rear Axle: SRAM 180mm Rear Maxle Ultimate 12x148mm
- Tires: MAXXIS Minion DHF 29×2.5WT 3C/Max Terra/EXO Front and Aggressor 29×2.5WT 3C/Max Terra/EXO Rear
Frame Weight with Sliding Inserts and Hardware
(M): 6 Lbs 10 oz
(L): 6 Lbs 14 oz
Complete Bike Weight
(M): 30 Lbs 1 oz with Dropper and set-up Tubeless
(M): 29 Lbs 7 oz with Turbine Seat Post and set-up Tubeless
Sizes: Sm, Med, Lrg, Xlrg
Finish: Matte Black, Turquoise & Orange
Pricing:
Complete : $2949.00 CAD / $2499.00 USD
Complete w/Dropper : $3299.00 CAD / $2799.00 USD
Frame Only: $799.00 CAD / $699.00 USD + Shipping
Included with the Frame Only option:
Cane Creek ZS-44 Headset for tapered steerer tube
Rear 12x148mm Sliding Drop-out Inserts
SRAM Rear Maxle Ultimate 12x148mm
Seat Post Clamp
Prices and Specs are subject to change without notice.
Note: We are unable to accommodate any single component substitution from one build to another, BUT we can accommodate the substitution of an entire build. Pricing will be dependent on the build and/or frame material at RSD’s sole discretion. All prices listed are Minimum Suggested Retail.
Frame Specs
- Handmade Frame: 27.5+/29 Double Butted Chromoly 4130 Heat Treated
- CNC Machined Custom Yoke: Chromoly 4130
- CNC Machined Drop-Out: Chromoly 4130
- CNC Machined Head Tube: 44mm
- CNC Machined Bottom Bracket Shell: 73mm BSA
- CNC Machined Sliding Inserts: 7000 Series Aluminum – 12mm Maxle and Post Disc Mount 160mm
- Dropper Post Routing: Internal
- Hardware: Stainless Steel
- Fork Length: 551mm (140mm)
- Rear Spacing: 148mm
- Seat Post Clamp: 34.9mm
- Seat Post: 30.9mm
- Max Tire Size: 27.5×2.8in or 29×2.6in – Optimized for 2.8in tires, some 3.0 tire/rim combinations may have enough clearance. Rider discretion is advised
- Max Fork Length: 561mm Axle to Crown (150mm Travel)
- Max Dropper Post Insertion Length: Small 180mm, Medium 220mm, Large 240mm, XL 260mm
- Torques Specs for 4 Drop-Out Bolts: 17N/m to 20N/m
| 27.5+ Middlechild | STATIC | Small | Medium | Large | XL |
| HT Angle | A | 64.5° | 64.5° | 64.5° | 64.5° |
| ST Angle | B | 74° | 74° | 74° | 74° |
| Actual TT | C | 550 | 586 | 604 | 631 |
| Effective TT | D | 586 | 625 | 642 | 669 |
| Seat Tube | E | 410 | 450 | 470 | 490 |
| Chainstay | F | 415-430 | 415-430 | 415-430 | 415-430 |
| BB Height | G | 320 | 320 | 320 | 320 |
| Standover Height | H | 695 | 710 | 714 | 717 |
| BB Drop (mm) | I | -40 | -40 | -40 | -40 |
| Stack | J | 610 | 619 | 619 | 629 |
| Reach | K | 410 | 448 | 465 | 489 |
| Head Tube (mm) | L | 100 | 110 | 110 | 120 |
| Fork length (mm) | M | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) |
| Fork Offset (mm) | N | 51 | 51 | 51 | 51 |
| Tire Size (in) | O | 2.80 | 2.80 | 2.80 | 2.80 |
| Wheelbase | 1152-1167 | 1193-1205 | 1210-1225 | 1238-1253 | |
| Rider | 155-170 | 170-178 | 178-185 | 185-195 | |
| HT Angle | A | 64.9° | |||
| Fork length (mm) | M | 541 (130 Travel) | |||
| BB Height | G | 315 | |||
| HT Angle | A | 64.1° | |||
| M | 561 (150 Travel) | ||||
| BB Height | G | 325 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×3.00 | |||
| BB Height | G | 325 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×2.6 | |||
| BB Height | G | 315 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×2.4 | |||
| BB Height | G | 310 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 26×2.8 | |||
| BB Height | G | 308 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 29×2.4 | |||
| BB Height | G | 330 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 29×2.6 | |||
| BB Height | G | 335 |
| 27.5+ Middlechild | STATIC | Small | Medium | Large | XL |
| HT Angle | A | 64.5° | 64.5° | 64.5° | 64.5° |
| ST Angle | B | 74° | 74° | 74° | 74° |
| Actual TT | C | 21.65 | 23.07 | 23.78 | 24.84 |
| Effective TT | D | 23.07 | 24.61 | 25.28 | 26.34 |
| Seat Tube | E | 16.14 | 17.71 | 18.50 | 19.29 |
| Chainstay | F | 16.30-16.90 | 16.30-16.90 | 16.30-16.90 | 16.30-16.90 |
| BB Height | G | 12.60 | 12.60 | 12.60 | 12.60 |
| Standover Height | H | 27.36 | 27.95 | 28.11 | 28.23 |
| BB Drop (mm) | I | -40 | -40 | -40 | -40 |
| Stack | J | 24.02 | 24.37 | 24.37 | 24.76 |
| Reach | K | 16.18 | 17.64 | 18.31 | 19.25 |
| Head Tube (mm) | L | 100 | 110 | 110 | 120 |
| Fork length (mm) | M | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) | 551 (140 Travel) |
| Fork Offset (mm) | N | 51 | 51 | 51 | 51 |
| Tire Size (in) | O | 2.80 | 2.80 | 2.80 | 2.80 |
| Wheelbase | 45.35-45.94 | 46.97-47.44 | 47.64-48.23 | 48.74-49.33 | |
| Rider | 5’2-5’7 | 5’7-5’10 | 5’10-6’1 | 6’1-6’5 | |
| HT Angle | A | 64.9° | |||
| Fork length (mm) | M | 541 (130 Travel) | |||
| BB Height | G | 12.40 | |||
| HT Angle | A | 64.1° | |||
| Fork length (mm) | M | 561 (150 Travel) | |||
| BB Height | G | 12.80 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×3.00 | |||
| BB Height | G | 12.80 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×2.6 | |||
| BB Height | G | 12.40 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 27.5×2.4 | |||
| BB Height | G | 12.20 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 26×2.8 | |||
| BB Height | G | 12.13 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 29×2.4 | |||
| BB Height | G | 12.99 | |||
| Fork length (mm) | M | 551 (140 Travel) | |||
| Tire Size (in) | O | 29×2.6 | |||
| BB Height | G | 13.19 |
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