Weighed as a mullet setup with a 29″ front wheel and 27.5 rear wheel. Over-forked in this setup and it’s thrown the geometry out by quite a lot. Super steep fire road climbs are harder now (have to put a lot of weight over the front wheel but also noticing the rear wheel slipping) but I like how it rides down the steeper techy stuff!
My ZEN Carbon Bike 27.5″ front wheel finally came in, and it’s super light at 589g, but with a heavier front tyre the weight comes to the same weight as the mullet setup (only 10g heavier). Swapping out the front wheel is easy as so I expect the run a full 27.5″ setup from time to time.
SPECS:
2025 Specialized Chisel – Rebel Pink Tint Organic Brushed / Satin Ion Metallic / Size S
Headset: Works Components ZS44-ZS56 Angle Headset -1° (102g)
Derailleur Hanger: SRAM UDH (26g)
Fork: Fox 36 Float SL Factory Shiny Orange 140mm + Kabolt SL axle (1745g)
Fork Top Caps: Better Bolts Orange (+1g)
Shock: Fox Factory FLOAT SL EVOL SV 190 x 40mm (249g)
Shifter: SRAM NX Eagle (112g)
Derailleur: SRAM GX Eagle (300g)
Chain: SRAM GX (244g)
Crankset: Samox Platinum TM-1 Carbon 155mm (378g)
Crank Arm Boots: Viaron (19g)
Chainring: Race Face 30T (63g)
BB: SRAM DUB (76g)
Pedals: HT Components ME03 (263g)
Brakes: SRAM G2 RS + MTX Gold pads (260g/280g)
Brake Caliper Bolts: Wanfiya titanium (-18g)
Brake Rotors: Trickstuff Ultralight 180/160 (119g/87g)
Rotor Adapters: Chaser 6-bolt to centrelock (8g/8g)
Seatpost: OneUp Dropper 120mm 30.9mm + Ti bolts (364g)
Seatpost Clamp: Hy 34.9 (9g)
Dropper Lever: OneUp (24g)
Saddle: Berk Dila 140mm (105g)
Handlebar: Procraft PRC Carbon 31.8 x 760mm 9° (136g)
Grips: Procraft Superlite + bar end plugs (20g)
Stem: Kalloy UNO 60mm + Ti bolts (74g)
Top Cap + Bolt: (4g)
Bottle Cage: Celoco + Ti bolts (9g)
Tools: Daysaver Essential8 + Carrier mount + bolts (40g)
Cassette: ZTTO SLR Gen3 Ultimate 10-50T XD (297g)
Sealant: Silca Ultimate (90g)
Front Wheel: DT Swiss XMC 1200 Spline, DT180 (650g)
Front Tyre: Specialized Fast Trak Flex Lite T5/T7 TLR 29×2.35 (633g)
Rear Wheel: ZEN Carbon Bike 27.5″ (689g)
Rear Tyre: Continental Dubnital 27.5 x 2.4 Rapid Trail (647g)
Ratchet: Goldix 60T helical ratchet (14g)
Valves: CushCore/Muc-Off 44mm (10/6g)
Rotor Lockrings: Chaser/7075-T651 (5g/3g)
Rotor Lockrings: 7075-T651 (3g/3g)
WEIGHT: 10.90kg
Original Weight: 13.51kg
27.5″ Setup:
Front Wheel: ZEN Carbon Bike (589g)
Front Tyre: Continental Trinotal 27.5 x 2.4 Grip Trail (702g)
Rear Wheel: ZEN Carbon Bike 27.5″ (689g)
Rear Tyre: Continental Dubnital 27.5 x 2.4 Rapid Trail (647g)
Ratchet: Goldix 60T helical ratchet (14g)
Valves: Muc-Off 44mm (12g)
Rotor Lockrings:7075-T651 (3g/3g)
WEIGHT: 10.9kg
Mullet Setup:
Front Wheel: DT Swiss XMC 1200 Spline, DT180 (650g)
Front Tyre: Specialized Fast Trak Flex Lite T5/T7 TLR 29×2.35 (633g)
Rear Wheel: ZEN Carbon Bike 27.5″ (689g)
Rear Tyre: Continental Dubnital 27.5 x 2.4 Rapid Trail (647g)
Ratchet: Goldix 60T helical ratchet (14g)
Valves: CushCore/Muc-Off 44mm (10/6g)
Rotor Lockrings: Chaser/7075-T651 (5g/3g)
WEIGHT: 10.9kg
29″ Setup:
Front Wheel: DT Swiss XMC 1200 Spline, DT180 (650g)
Front Tyre: Specialized Fast Trak Flex Lite T5/T7 TLR 29×2.35 (633g)
Rear Wheel: DT Swiss XMC 1200 Spline, DT180 (835g)
Rear Tyre: Specialized Air Trak Flex Lite T5/T7 TLR 29×2.35, (617g)
Valves: CushCore 44mm (20g)
Rotor Lockrings: Chaser (5g/5g)
WEIGHT: 11.0kg